21021221520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:157

約数の個数: 960

約数和(自身を含む): 86881939200

約数和(自身を除く): 65860717680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 24, 26, 27, 30, 31, 36, 38, 39, 40, 41, 45, 48, 52, 54, 57, 60, 62, 65, 72, 76, 78, 80, 82, 90, 93, 95, 104, 108, 114, 117, 120, 123, 124, 130, 135, 144, 152, 155, 156, 164, 171, 180, 186, 190, 195, 205, 208, 216, 228, 234, 240, 246, 247, 248, 260, 270, 279, 285, 304, 310, 312, 328, 342, 351, 360, 369, 372, 380, 390, 403, 410, 432, 456, 465, 468, 492, 494, 496, 513, 520, 533, 540, 558, 570, 585, 589, 615, 620, 624, 656, 684, 702, 720, 738, 741, 744, 760, 779, 780, 806, 820, 837, 855, 912, 930, 936, 961, 984, 988, 1026, 1040, 1066, 1080, 1107, 1116, 1140, 1170, 1178, 1209, 1230, 1235, 1240, 1271, 1368, 1395, 1404, 1476, 1482, 1488, 1520, 1558, 1560, 1599, 1612, 1640, 1674, 1710, 1755, 1767, 1845, 1860, 1872, 1922, 1968, 1976, 2015, 2052, 2132, 2160, 2214, 2223, 2232, 2280, 2337, 2340, 2356, 2418, 2460, 2470, 2480, 2542, 2565, 2665, 2736, 2790, 2808, 2883, 2945, 2952, 2964, 3116, 3120, 3198, 3224, 3280, 3348, 3420, 3510, 3534, 3627, 3690, 3705, 3720, 3813, 3844, 3895, 3952, 4030, 4104, 4185, 4264, 4428, 4446, 4464, 4560, 4674, 4680, 4712, 4797, 4805, 4836, 4920, 4940, 5084, 5130, 5301, 5330, 5535, 5580, 5616, 5766, 5890, 5904, 5928, 6045, 6232, 6355, 6396, 6448, 6669, 6696, 6840, 7011, 7020, 7068, 7254, 7380, 7410, 7440, 7626, 7657, 7688, 7790, 7995, 8060, 8208, 8370, 8528, 8649, 8835, 8856, 8892, 9348, 9360, 9424, 9594, 9610, 9672, 9840, 9880, 10127, 10168, 10260, 10602, 10660, 10881, 11070, 11115, 11160, 11439, 11532, 11685, 11780, 11856, 12090, 12464, 12493, 12710, 12792, 13338, 13392, 13680, 14022, 14040, 14136, 14391, 14415, 14508, 14760, 14820, 15252, 15314, 15376, 15580, 15903, 15990, 16120, 16523, 16740, 17298, 17670, 17712, 17784, 18135, 18259, 18696, 19065, 19188, 19220, 19344, 19760, 20254, 20336, 20520, 21033, 21204, 21320, 21762, 22140, 22230, 22320, 22878, 22971, 23064, 23370, 23560, 23985, 24149, 24180, 24986, 25420, 25584, 25947, 26505, 26676, 28044, 28080, 28272, 28782, 28830, 29016, 29520, 29640, 30381, 30504, 30628, 31160, 31806, 31980, 32240, 33046, 33345, 33480, 34317, 34596, 35055, 35340, 35568, 36270, 36518, 37392, 37479, 38130, 38285, 38376, 38440, 39401, 40508, 41040, 42066, 42408, 42640, 43245, 43524, 44280, 44460, 45756, 45942, 46128, 46740, 47120, 47970, 48298, 48360, 49569, 49972, 50635, 50840, 51894, 53010, 53352, 54405, 54777, 56088, 57195, 57564, 57660, 58032, 59280, 60762, 61008, 61256, 62320, 62465, 63612, 63960, 66092, 66690, 66960, 68634, 68913, 69192, 70110, 70680, 71955, 72447, 72540, 73036, 74958, 76260, 76570, 76752, 76880, 78802, 79515, 81016, 82615, 84132, 84816, 86490, 87048, 88560, 88920, 91143, 91295, 91512, 91884, 93480, 95940, 96596, 96720, 99138, 99944, 101270, 101680, 103788, 105165, 106020, 106704, 108810, 109554, 112176, 112437, 114390, 114855, 115128, 115320, 118203, 120745, 121524, 122512, 124930, 127224, 127920, 129735, 132184, 133380, 137268, 137826, 138384, 140220, 141360, 143910, 144894, 145080, 146072, 148707, 149916, 151905, 152520, 153140, 157604, 159030, 162032, 164331, 165230, 168264, 171585, 172980, 174096, 177840, 182286, 182590, 183024, 183768, 186960, 187395, 191880, 193192, 197005, 198276, 199888, 202540, 206739, 207576, 210330, 212040, 217341, 217620, 219108, 224874, 228780, 229710, 230256, 230640, 236406, 237367, 241490, 243048, 247845, 249860, 254448, 259470, 264368, 266760, 273429, 273885, 274536, 275652, 280440, 287820, 289788, 290160, 292144, 297414, 299832, 303810, 305040, 306280, 313937, 315208, 318060, 328662, 330460, 336528, 337311, 343170, 344565, 345960, 354609, 362235, 364572, 365180, 367536, 374790, 383760, 386384, 394010, 396552, 405080, 413478, 415152, 420660, 424080, 434682, 435240, 438216, 446121, 449748, 455715, 457560, 459420, 472812, 474734, 482980, 486096, 492993, 495690, 499720, 512213, 518940, 533520, 546858, 547770, 549072, 551304, 560880, 562185, 575640, 579576, 591015, 594828, 599664, 607620, 612560, 627874, 630416, 636120, 652023, 657324, 660920, 674622, 686340, 689130, 691920, 709218, 712101, 724470, 729144, 730360, 743535, 748619, 749580, 788020, 793104, 810160, 821655, 826956, 841320, 869364, 870480, 876432, 892242, 899496, 911430, 915120, 918840, 941811, 945624, 949468, 965960, 985986, 991380, 999440, 1024426, 1033695, 1037880, 1063827, 1086705, 1093716, 1095540, 1102608, 1124370, 1151280, 1159152, 1182030, 1186835, 1189656, 1215240, 1255748, 1272240, 1304046, 1314648, 1321840, 1349244, 1367145, 1372680, 1378260, 1418436, 1424202, 1448940, 1458288, 1460720, 1487070, 1497238, 1499160, 1536639, 1569685, 1576040, 1643310, 1653912, 1682640, 1686555, 1738728, 1773045, 1784484, 1798992, 1822860, 1837680, 1883622, 1891248, 1898936, 1931920, 1971972, 1982760, 2048852, 2067390, 2075760, 2127654, 2136303, 2173410, 2187432, 2191080, 2230605, 2245857, 2248740, 2364060, 2373670, 2379312, 2430480, 2464965, 2511496, 2561065, 2608092, 2629296, 2698488, 2734290, 2745360, 2756520, 2825433, 2836872, 2848404, 2897880, 2974140, 2994476, 2998320, 3073278, 3139370, 3152080, 3260115, 3286620, 3307824, 3373110, 3477456, 3546090, 3560505, 3568968, 3645720, 3743095, 3767244, 3797872, 3943944, 3965520, 4097704, 4134780, 4255308, 4272606, 4346820, 4374864, 4382160, 4461210, 4491714, 4497480, 4609917, 4709055, 4728120, 4747340, 4929930, 5022992, 5122130, 5216184, 5319135, 5396976, 5468580, 5513040, 5650866, 5673744, 5696808, 5795760, 5948280, 5988952, 6146556, 6278740, 6408909, 6520230, 6573240, 6737571, 6746220, 7092180, 7121010, 7137936, 7291440, 7486190, 7534488, 7683195, 7887888, 8195408, 8269560, 8476299, 8510616, 8545212, 8693640, 8922420, 8983428, 8994960, 9219834, 9418110, 9456240, 9494680, 9732047, 9859860, 10244260, 10432368, 10638270, 10681515, 10937160, 11229285, 11301732, 11393616, 11896560, 11977904, 12293112, 12557480, 12817818, 13040460, 13146480, 13475142, 13492440, 13829751, 14127165, 14184360, 14242020, 14972380, 15068976, 15366390, 16539120, 16952598, 17021232, 17090424, 17387280, 17844840, 17966856, 18439668, 18836220, 18989360, 19464094, 19719720, 20212713, 20488520, 21276540, 21363030, 21874320, 22458570, 22603464, 23049585, 24586224, 25114960, 25635636, 26080920, 26950284, 26984880, 27659502, 28254330, 28368720, 28484040, 29196141, 29944760, 30732780, 32044545, 33687855, 33905196, 34180848, 35689680, 35933712, 36879336, 37672440, 38928188, 39439440, 40425426, 40977040, 42381495, 42553080, 42726060, 44917140, 45206928, 46099170, 48660235, 51271272, 52161840, 53900568, 55319004, 56508660, 56968080, 58392282, 59889520, 61465560, 64089090, 67375710, 67810392, 69148755, 73758672, 75344880, 77856376, 80850852, 84762990, 85106160, 85452120, 87588423, 89834280, 92198340, 97320470, 101063565, 102542544, 107801136, 110638008, 113017320, 116784564, 122931120, 128178180, 134751420, 135620784, 138297510, 145980705, 155712752, 161701704, 169525980, 170904240, 175176846, 179668560, 184396680, 194640940, 202127130, 221276016, 226034640, 233569128, 256356360, 262765269, 269502840, 276595020, 291961410, 323403408, 339051960, 350353692, 368793360, 389281880, 404254260, 437942115, 467138256, 512712720, 525530538, 539005680, 553190040, 583922820, 678103920, 700707384, 778563760, 808508520, 875884230, 1051061076, 1106380080, 1167845640, 1313826345, 1401414768, 1617017040, 1751768460, 2102122152, 2335691280, 2627652690, 3503536920, 4204244304, 5255305380, 7007073840, 10510610760, 21021221520]

約数ペア:

[(1, 21021221520), (2, 10510610760), (3, 7007073840), (4, 5255305380), (5, 4204244304), (6, 3503536920), (8, 2627652690), (9, 2335691280), (10, 2102122152), (12, 1751768460), (13, 1617017040), (15, 1401414768), (16, 1313826345), (18, 1167845640), (19, 1106380080), (20, 1051061076), (24, 875884230), (26, 808508520), (27, 778563760), (30, 700707384), (31, 678103920), (36, 583922820), (38, 553190040), (39, 539005680), (40, 525530538), (41, 512712720), (45, 467138256), (48, 437942115), (52, 404254260), (54, 389281880), (57, 368793360), (60, 350353692), (62, 339051960), (65, 323403408), (72, 291961410), (76, 276595020), (78, 269502840), (80, 262765269), (82, 256356360), (90, 233569128), (93, 226034640), (95, 221276016), (104, 202127130), (108, 194640940), (114, 184396680), (117, 179668560), (120, 175176846), (123, 170904240), (124, 169525980), (130, 161701704), (135, 155712752), (144, 145980705), (152, 138297510), (155, 135620784), (156, 134751420), (164, 128178180), (171, 122931120), (180, 116784564), (186, 113017320), (190, 110638008), (195, 107801136), (205, 102542544), (208, 101063565), (216, 97320470), (228, 92198340), (234, 89834280), (240, 87588423), (246, 85452120), (247, 85106160), (248, 84762990), (260, 80850852), (270, 77856376), (279, 75344880), (285, 73758672), (304, 69148755), (310, 67810392), (312, 67375710), (328, 64089090), (342, 61465560), (351, 59889520), (360, 58392282), (369, 56968080), (372, 56508660), (380, 55319004), (390, 53900568), (403, 52161840), (410, 51271272), (432, 48660235), (456, 46099170), (465, 45206928), (468, 44917140), (492, 42726060), (494, 42553080), (496, 42381495), (513, 40977040), (520, 40425426), (533, 39439440), (540, 38928188), (558, 37672440), (570, 36879336), (585, 35933712), (589, 35689680), (615, 34180848), (620, 33905196), (624, 33687855), (656, 32044545), (684, 30732780), (702, 29944760), (720, 29196141), (738, 28484040), (741, 28368720), (744, 28254330), (760, 27659502), (779, 26984880), (780, 26950284), (806, 26080920), (820, 25635636), (837, 25114960), (855, 24586224), (912, 23049585), (930, 22603464), (936, 22458570), (961, 21874320), (984, 21363030), (988, 21276540), (1026, 20488520), (1040, 20212713), (1066, 19719720), (1080, 19464094), (1107, 18989360), (1116, 18836220), (1140, 18439668), (1170, 17966856), (1178, 17844840), (1209, 17387280), (1230, 17090424), (1235, 17021232), (1240, 16952598), (1271, 16539120), (1368, 15366390), (1395, 15068976), (1404, 14972380), (1476, 14242020), (1482, 14184360), (1488, 14127165), (1520, 13829751), (1558, 13492440), (1560, 13475142), (1599, 13146480), (1612, 13040460), (1640, 12817818), (1674, 12557480), (1710, 12293112), (1755, 11977904), (1767, 11896560), (1845, 11393616), (1860, 11301732), (1872, 11229285), (1922, 10937160), (1968, 10681515), (1976, 10638270), (2015, 10432368), (2052, 10244260), (2132, 9859860), (2160, 9732047), (2214, 9494680), (2223, 9456240), (2232, 9418110), (2280, 9219834), (2337, 8994960), (2340, 8983428), (2356, 8922420), (2418, 8693640), (2460, 8545212), (2470, 8510616), (2480, 8476299), (2542, 8269560), (2565, 8195408), (2665, 7887888), (2736, 7683195), (2790, 7534488), (2808, 7486190), (2883, 7291440), (2945, 7137936), (2952, 7121010), (2964, 7092180), (3116, 6746220), (3120, 6737571), (3198, 6573240), (3224, 6520230), (3280, 6408909), (3348, 6278740), (3420, 6146556), (3510, 5988952), (3534, 5948280), (3627, 5795760), (3690, 5696808), (3705, 5673744), (3720, 5650866), (3813, 5513040), (3844, 5468580), (3895, 5396976), (3952, 5319135), (4030, 5216184), (4104, 5122130), (4185, 5022992), (4264, 4929930), (4428, 4747340), (4446, 4728120), (4464, 4709055), (4560, 4609917), (4674, 4497480), (4680, 4491714), (4712, 4461210), (4797, 4382160), (4805, 4374864), (4836, 4346820), (4920, 4272606), (4940, 4255308), (5084, 4134780), (5130, 4097704), (5301, 3965520), (5330, 3943944), (5535, 3797872), (5580, 3767244), (5616, 3743095), (5766, 3645720), (5890, 3568968), (5904, 3560505), (5928, 3546090), (6045, 3477456), (6232, 3373110), (6355, 3307824), (6396, 3286620), (6448, 3260115), (6669, 3152080), (6696, 3139370), (6840, 3073278), (7011, 2998320), (7020, 2994476), (7068, 2974140), (7254, 2897880), (7380, 2848404), (7410, 2836872), (7440, 2825433), (7626, 2756520), (7657, 2745360), (7688, 2734290), (7790, 2698488), (7995, 2629296), (8060, 2608092), (8208, 2561065), (8370, 2511496), (8528, 2464965), (8649, 2430480), (8835, 2379312), (8856, 2373670), (8892, 2364060), (9348, 2248740), (9360, 2245857), (9424, 2230605), (9594, 2191080), (9610, 2187432), (9672, 2173410), (9840, 2136303), (9880, 2127654), (10127, 2075760), (10168, 2067390), (10260, 2048852), (10602, 1982760), (10660, 1971972), (10881, 1931920), (11070, 1898936), (11115, 1891248), (11160, 1883622), (11439, 1837680), (11532, 1822860), (11685, 1798992), (11780, 1784484), (11856, 1773045), (12090, 1738728), (12464, 1686555), (12493, 1682640), (12710, 1653912), (12792, 1643310), (13338, 1576040), (13392, 1569685), (13680, 1536639), (14022, 1499160), (14040, 1497238), (14136, 1487070), (14391, 1460720), (14415, 1458288), (14508, 1448940), (14760, 1424202), (14820, 1418436), (15252, 1378260), (15314, 1372680), (15376, 1367145), (15580, 1349244), (15903, 1321840), (15990, 1314648), (16120, 1304046), (16523, 1272240), (16740, 1255748), (17298, 1215240), (17670, 1189656), (17712, 1186835), (17784, 1182030), (18135, 1159152), (18259, 1151280), (18696, 1124370), (19065, 1102608), (19188, 1095540), (19220, 1093716), (19344, 1086705), (19760, 1063827), (20254, 1037880), (20336, 1033695), (20520, 1024426), (21033, 999440), (21204, 991380), (21320, 985986), (21762, 965960), (22140, 949468), (22230, 945624), (22320, 941811), (22878, 918840), (22971, 915120), (23064, 911430), (23370, 899496), (23560, 892242), (23985, 876432), (24149, 870480), (24180, 869364), (24986, 841320), (25420, 826956), (25584, 821655), (25947, 810160), (26505, 793104), (26676, 788020), (28044, 749580), (28080, 748619), (28272, 743535), (28782, 730360), (28830, 729144), (29016, 724470), (29520, 712101), (29640, 709218), (30381, 691920), (30504, 689130), (30628, 686340), (31160, 674622), (31806, 660920), (31980, 657324), (32240, 652023), (33046, 636120), (33345, 630416), (33480, 627874), (34317, 612560), (34596, 607620), (35055, 599664), (35340, 594828), (35568, 591015), (36270, 579576), (36518, 575640), (37392, 562185), (37479, 560880), (38130, 551304), (38285, 549072), (38376, 547770), (38440, 546858), (39401, 533520), (40508, 518940), (41040, 512213), (42066, 499720), (42408, 495690), (42640, 492993), (43245, 486096), (43524, 482980), (44280, 474734), (44460, 472812), (45756, 459420), (45942, 457560), (46128, 455715), (46740, 449748), (47120, 446121), (47970, 438216), (48298, 435240), (48360, 434682), (49569, 424080), (49972, 420660), (50635, 415152), (50840, 413478), (51894, 405080), (53010, 396552), (53352, 394010), (54405, 386384), (54777, 383760), (56088, 374790), (57195, 367536), (57564, 365180), (57660, 364572), (58032, 362235), (59280, 354609), (60762, 345960), (61008, 344565), (61256, 343170), (62320, 337311), (62465, 336528), (63612, 330460), (63960, 328662), (66092, 318060), (66690, 315208), (66960, 313937), (68634, 306280), (68913, 305040), (69192, 303810), (70110, 299832), (70680, 297414), (71955, 292144), (72447, 290160), (72540, 289788), (73036, 287820), (74958, 280440), (76260, 275652), (76570, 274536), (76752, 273885), (76880, 273429), (78802, 266760), (79515, 264368), (81016, 259470), (82615, 254448), (84132, 249860), (84816, 247845), (86490, 243048), (87048, 241490), (88560, 237367), (88920, 236406), (91143, 230640), (91295, 230256), (91512, 229710), (91884, 228780), (93480, 224874), (95940, 219108), (96596, 217620), (96720, 217341), (99138, 212040), (99944, 210330), (101270, 207576), (101680, 206739), (103788, 202540), (105165, 199888), (106020, 198276), (106704, 197005), (108810, 193192), (109554, 191880), (112176, 187395), (112437, 186960), (114390, 183768), (114855, 183024), (115128, 182590), (115320, 182286), (118203, 177840), (120745, 174096), (121524, 172980), (122512, 171585), (124930, 168264), (127224, 165230), (127920, 164331), (129735, 162032), (132184, 159030), (133380, 157604), (137268, 153140), (137826, 152520), (138384, 151905), (140220, 149916), (141360, 148707), (143910, 146072), (144894, 145080)]