21000455280

素因数分解:

$2^4\times 3^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{59}}^2$

素因数の和:176

約数の個数: 900

約数和(自身を含む): 90850870440

約数和(自身を除く): 69850415160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 48, 49, 54, 56, 57, 59, 60, 63, 70, 72, 76, 80, 81, 84, 90, 95, 98, 105, 108, 112, 114, 118, 120, 126, 133, 135, 140, 144, 147, 152, 162, 168, 171, 177, 180, 189, 190, 196, 210, 216, 228, 236, 240, 245, 252, 266, 270, 280, 285, 294, 295, 304, 315, 324, 336, 342, 354, 360, 378, 380, 392, 399, 405, 413, 420, 432, 441, 456, 472, 490, 504, 513, 531, 532, 540, 560, 567, 570, 588, 590, 630, 648, 665, 684, 708, 720, 735, 756, 760, 784, 798, 810, 826, 840, 855, 882, 885, 912, 931, 944, 945, 980, 1008, 1026, 1062, 1064, 1080, 1121, 1134, 1140, 1176, 1180, 1197, 1239, 1260, 1296, 1323, 1330, 1368, 1416, 1470, 1512, 1520, 1539, 1593, 1596, 1620, 1652, 1680, 1710, 1764, 1770, 1862, 1890, 1960, 1995, 2052, 2065, 2124, 2128, 2160, 2205, 2242, 2268, 2280, 2352, 2360, 2394, 2478, 2520, 2565, 2646, 2655, 2660, 2736, 2793, 2832, 2835, 2891, 2940, 3024, 3078, 3186, 3192, 3240, 3304, 3363, 3420, 3481, 3528, 3540, 3591, 3717, 3724, 3780, 3920, 3969, 3990, 4104, 4130, 4248, 4410, 4484, 4536, 4560, 4655, 4720, 4779, 4788, 4956, 5040, 5130, 5292, 5310, 5320, 5586, 5605, 5670, 5782, 5880, 5985, 6156, 6195, 6372, 6384, 6480, 6608, 6615, 6726, 6840, 6962, 7056, 7080, 7182, 7434, 7448, 7560, 7695, 7847, 7938, 7965, 7980, 8208, 8260, 8379, 8496, 8673, 8820, 8968, 9072, 9310, 9558, 9576, 9912, 10089, 10260, 10443, 10584, 10620, 10640, 10773, 11151, 11172, 11210, 11340, 11564, 11760, 11970, 12312, 12390, 12744, 13230, 13452, 13680, 13924, 13965, 14160, 14364, 14455, 14868, 14896, 15120, 15390, 15694, 15876, 15930, 15960, 16520, 16758, 16815, 17346, 17405, 17640, 17936, 17955, 18585, 18620, 19116, 19152, 19824, 19845, 20178, 20520, 20886, 21168, 21240, 21546, 22302, 22344, 22420, 22680, 23128, 23541, 23895, 23940, 24367, 24624, 24780, 25137, 25488, 26019, 26460, 26904, 27848, 27930, 28728, 28910, 29736, 30267, 30780, 31329, 31388, 31752, 31860, 31920, 33040, 33453, 33516, 33630, 34692, 34810, 35280, 35910, 37170, 37240, 38232, 39235, 39690, 40356, 41040, 41772, 41895, 42480, 43092, 43365, 44604, 44688, 44840, 45360, 46256, 47082, 47790, 47880, 48734, 49560, 50274, 50445, 52038, 52215, 52920, 53808, 53865, 54929, 55696, 55755, 55860, 57456, 57820, 59472, 60534, 61560, 62658, 62776, 63504, 63720, 66139, 66906, 67032, 67260, 69384, 69620, 70623, 71820, 73101, 74340, 74480, 75411, 76464, 78057, 78470, 79380, 80712, 83544, 83790, 86184, 86730, 89208, 89680, 90801, 93987, 94164, 95580, 95760, 97468, 99120, 100548, 100890, 104076, 104430, 105840, 107730, 109858, 111510, 111720, 115640, 117705, 121068, 121835, 123120, 125316, 125552, 125685, 127440, 130095, 132278, 133812, 134064, 134520, 138768, 139240, 141246, 143640, 146202, 148680, 150822, 151335, 156114, 156645, 156940, 158760, 161424, 164787, 167088, 167265, 167580, 170569, 172368, 173460, 178416, 181602, 187974, 188328, 191160, 194936, 198417, 201096, 201780, 208152, 208860, 211869, 215460, 219303, 219716, 223020, 223440, 231280, 234171, 235410, 242136, 243670, 250632, 251370, 260190, 264556, 267624, 269040, 274645, 278480, 281961, 282492, 287280, 292404, 297360, 301644, 302670, 312228, 313290, 313880, 317520, 329574, 330695, 334530, 335160, 341138, 346920, 353115, 363204, 365505, 375948, 376656, 377055, 382320, 389872, 390285, 396834, 402192, 403560, 416304, 417720, 423738, 430920, 438606, 439432, 446040, 454005, 462973, 468342, 469935, 470820, 484272, 487340, 494361, 501264, 502740, 511707, 520380, 529112, 535248, 549290, 563922, 564984, 584808, 595251, 603288, 605340, 624456, 626580, 627760, 635607, 657909, 659148, 661390, 669060, 670320, 682276, 693840, 706230, 726408, 731010, 751896, 754110, 780570, 793668, 807120, 823935, 835440, 847476, 852845, 861840, 877212, 878864, 892080, 908010, 925946, 936684, 939870, 941640, 974680, 988722, 992085, 1005480, 1023414, 1040760, 1058224, 1059345, 1096515, 1098580, 1127844, 1129968, 1169616, 1170855, 1190502, 1206576, 1210680, 1248912, 1253160, 1271214, 1315818, 1318296, 1322780, 1338120, 1364552, 1388919, 1409805, 1412460, 1452816, 1462020, 1483083, 1503792, 1508220, 1535121, 1561140, 1587336, 1647870, 1694952, 1705690, 1754424, 1785753, 1816020, 1851892, 1873368, 1879740, 1883280, 1949360, 1973727, 1977444, 1984170, 2010960, 2046828, 2081520, 2118690, 2193030, 2197160, 2255688, 2314865, 2341710, 2381004, 2421360, 2471805, 2506320, 2542428, 2558535, 2631636, 2636592, 2645560, 2676240, 2729104, 2777838, 2819610, 2824920, 2924040, 2966166, 2976255, 3016440, 3070242, 3122280, 3174672, 3178035, 3240811, 3289545, 3295740, 3389904, 3411380, 3508848, 3571506, 3632040, 3703784, 3746736, 3759480, 3947454, 3954888, 3968340, 4093656, 4166757, 4237380, 4386060, 4394320, 4449249, 4511376, 4605363, 4629730, 4683420, 4762008, 4943610, 5084856, 5117070, 5263272, 5291120, 5357259, 5555676, 5639220, 5649840, 5848080, 5932332, 5952510, 6032880, 6140484, 6244560, 6356070, 6481622, 6579090, 6591480, 6822760, 6944595, 7143012, 7264080, 7407568, 7415415, 7518960, 7675605, 7894908, 7909776, 7936680, 8187312, 8333514, 8474760, 8772120, 8898498, 8928765, 9210726, 9259460, 9366840, 9524016, 9722433, 9868635, 9887220, 10169712, 10234140, 10526544, 10714518, 11111352, 11278440, 11864664, 11905020, 12280968, 12500271, 12712140, 12963244, 13158180, 13182960, 13645520, 13816089, 13889190, 14286024, 14830830, 15351210, 15789816, 15873360, 16204055, 16667028, 16949520, 17544240, 17796996, 17857530, 18421452, 18518920, 18733680, 19444866, 19737270, 19774440, 20468280, 20833785, 21429036, 22222704, 22246245, 22556880, 23026815, 23729328, 23810040, 24561936, 25000542, 25424280, 25926488, 26316360, 26786295, 27632178, 27778380, 28572048, 29167299, 29661660, 30702420, 31579632, 32408110, 33334056, 35593992, 35715060, 36842904, 37037840, 37500813, 38889732, 39474540, 39548880, 40936560, 41667570, 42858072, 44492490, 46053630, 47620080, 48612165, 50001084, 50848560, 51852976, 52632720, 53572590, 55264356, 55556760, 58334598, 59323320, 61404840, 62501355, 64816220, 66668112, 69080445, 71187984, 71430120, 73685808, 75001626, 77779464, 78949080, 83335140, 85716144, 87501897, 88984980, 92107260, 97224330, 100002168, 107145180, 110528712, 111113520, 116669196, 118646640, 122809680, 125002710, 129632440, 138160890, 142860240, 145836495, 150003252, 155558928, 157898160, 166670280, 175003794, 177969960, 184214520, 187504065, 194448660, 200004336, 214290360, 221057424, 233338392, 250005420, 259264880, 262505691, 276321780, 291672990, 300006504, 333340560, 350007588, 355939920, 368429040, 375008130, 388897320, 428580720, 437509485, 466676784, 500010840, 525011382, 552643560, 583345980, 600013008, 700015176, 750016260, 777794640, 875018970, 1000021680, 1050022764, 1105287120, 1166691960, 1312528455, 1400030352, 1500032520, 1750037940, 2100045528, 2333383920, 2625056910, 3000065040, 3500075880, 4200091056, 5250113820, 7000151760, 10500227640, 21000455280]

約数ペア:

[(1, 21000455280), (2, 10500227640), (3, 7000151760), (4, 5250113820), (5, 4200091056), (6, 3500075880), (7, 3000065040), (8, 2625056910), (9, 2333383920), (10, 2100045528), (12, 1750037940), (14, 1500032520), (15, 1400030352), (16, 1312528455), (18, 1166691960), (19, 1105287120), (20, 1050022764), (21, 1000021680), (24, 875018970), (27, 777794640), (28, 750016260), (30, 700015176), (35, 600013008), (36, 583345980), (38, 552643560), (40, 525011382), (42, 500010840), (45, 466676784), (48, 437509485), (49, 428580720), (54, 388897320), (56, 375008130), (57, 368429040), (59, 355939920), (60, 350007588), (63, 333340560), (70, 300006504), (72, 291672990), (76, 276321780), (80, 262505691), (81, 259264880), (84, 250005420), (90, 233338392), (95, 221057424), (98, 214290360), (105, 200004336), (108, 194448660), (112, 187504065), (114, 184214520), (118, 177969960), (120, 175003794), (126, 166670280), (133, 157898160), (135, 155558928), (140, 150003252), (144, 145836495), (147, 142860240), (152, 138160890), (162, 129632440), (168, 125002710), (171, 122809680), (177, 118646640), (180, 116669196), (189, 111113520), (190, 110528712), (196, 107145180), (210, 100002168), (216, 97224330), (228, 92107260), (236, 88984980), (240, 87501897), (245, 85716144), (252, 83335140), (266, 78949080), (270, 77779464), (280, 75001626), (285, 73685808), (294, 71430120), (295, 71187984), (304, 69080445), (315, 66668112), (324, 64816220), (336, 62501355), (342, 61404840), (354, 59323320), (360, 58334598), (378, 55556760), (380, 55264356), (392, 53572590), (399, 52632720), (405, 51852976), (413, 50848560), (420, 50001084), (432, 48612165), (441, 47620080), (456, 46053630), (472, 44492490), (490, 42858072), (504, 41667570), (513, 40936560), (531, 39548880), (532, 39474540), (540, 38889732), (560, 37500813), (567, 37037840), (570, 36842904), (588, 35715060), (590, 35593992), (630, 33334056), (648, 32408110), (665, 31579632), (684, 30702420), (708, 29661660), (720, 29167299), (735, 28572048), (756, 27778380), (760, 27632178), (784, 26786295), (798, 26316360), (810, 25926488), (826, 25424280), (840, 25000542), (855, 24561936), (882, 23810040), (885, 23729328), (912, 23026815), (931, 22556880), (944, 22246245), (945, 22222704), (980, 21429036), (1008, 20833785), (1026, 20468280), (1062, 19774440), (1064, 19737270), (1080, 19444866), (1121, 18733680), (1134, 18518920), (1140, 18421452), (1176, 17857530), (1180, 17796996), (1197, 17544240), (1239, 16949520), (1260, 16667028), (1296, 16204055), (1323, 15873360), (1330, 15789816), (1368, 15351210), (1416, 14830830), (1470, 14286024), (1512, 13889190), (1520, 13816089), (1539, 13645520), (1593, 13182960), (1596, 13158180), (1620, 12963244), (1652, 12712140), (1680, 12500271), (1710, 12280968), (1764, 11905020), (1770, 11864664), (1862, 11278440), (1890, 11111352), (1960, 10714518), (1995, 10526544), (2052, 10234140), (2065, 10169712), (2124, 9887220), (2128, 9868635), (2160, 9722433), (2205, 9524016), (2242, 9366840), (2268, 9259460), (2280, 9210726), (2352, 8928765), (2360, 8898498), (2394, 8772120), (2478, 8474760), (2520, 8333514), (2565, 8187312), (2646, 7936680), (2655, 7909776), (2660, 7894908), (2736, 7675605), (2793, 7518960), (2832, 7415415), (2835, 7407568), (2891, 7264080), (2940, 7143012), (3024, 6944595), (3078, 6822760), (3186, 6591480), (3192, 6579090), (3240, 6481622), (3304, 6356070), (3363, 6244560), (3420, 6140484), (3481, 6032880), (3528, 5952510), (3540, 5932332), (3591, 5848080), (3717, 5649840), (3724, 5639220), (3780, 5555676), (3920, 5357259), (3969, 5291120), (3990, 5263272), (4104, 5117070), (4130, 5084856), (4248, 4943610), (4410, 4762008), (4484, 4683420), (4536, 4629730), (4560, 4605363), (4655, 4511376), (4720, 4449249), (4779, 4394320), (4788, 4386060), (4956, 4237380), (5040, 4166757), (5130, 4093656), (5292, 3968340), (5310, 3954888), (5320, 3947454), (5586, 3759480), (5605, 3746736), (5670, 3703784), (5782, 3632040), (5880, 3571506), (5985, 3508848), (6156, 3411380), (6195, 3389904), (6372, 3295740), (6384, 3289545), (6480, 3240811), (6608, 3178035), (6615, 3174672), (6726, 3122280), (6840, 3070242), (6962, 3016440), (7056, 2976255), (7080, 2966166), (7182, 2924040), (7434, 2824920), (7448, 2819610), (7560, 2777838), (7695, 2729104), (7847, 2676240), (7938, 2645560), (7965, 2636592), (7980, 2631636), (8208, 2558535), (8260, 2542428), (8379, 2506320), (8496, 2471805), (8673, 2421360), (8820, 2381004), (8968, 2341710), (9072, 2314865), (9310, 2255688), (9558, 2197160), (9576, 2193030), (9912, 2118690), (10089, 2081520), (10260, 2046828), (10443, 2010960), (10584, 1984170), (10620, 1977444), (10640, 1973727), (10773, 1949360), (11151, 1883280), (11172, 1879740), (11210, 1873368), (11340, 1851892), (11564, 1816020), (11760, 1785753), (11970, 1754424), (12312, 1705690), (12390, 1694952), (12744, 1647870), (13230, 1587336), (13452, 1561140), (13680, 1535121), (13924, 1508220), (13965, 1503792), (14160, 1483083), (14364, 1462020), (14455, 1452816), (14868, 1412460), (14896, 1409805), (15120, 1388919), (15390, 1364552), (15694, 1338120), (15876, 1322780), (15930, 1318296), (15960, 1315818), (16520, 1271214), (16758, 1253160), (16815, 1248912), (17346, 1210680), (17405, 1206576), (17640, 1190502), (17936, 1170855), (17955, 1169616), (18585, 1129968), (18620, 1127844), (19116, 1098580), (19152, 1096515), (19824, 1059345), (19845, 1058224), (20178, 1040760), (20520, 1023414), (20886, 1005480), (21168, 992085), (21240, 988722), (21546, 974680), (22302, 941640), (22344, 939870), (22420, 936684), (22680, 925946), (23128, 908010), (23541, 892080), (23895, 878864), (23940, 877212), (24367, 861840), (24624, 852845), (24780, 847476), (25137, 835440), (25488, 823935), (26019, 807120), (26460, 793668), (26904, 780570), (27848, 754110), (27930, 751896), (28728, 731010), (28910, 726408), (29736, 706230), (30267, 693840), (30780, 682276), (31329, 670320), (31388, 669060), (31752, 661390), (31860, 659148), (31920, 657909), (33040, 635607), (33453, 627760), (33516, 626580), (33630, 624456), (34692, 605340), (34810, 603288), (35280, 595251), (35910, 584808), (37170, 564984), (37240, 563922), (38232, 549290), (39235, 535248), (39690, 529112), (40356, 520380), (41040, 511707), (41772, 502740), (41895, 501264), (42480, 494361), (43092, 487340), (43365, 484272), (44604, 470820), (44688, 469935), (44840, 468342), (45360, 462973), (46256, 454005), (47082, 446040), (47790, 439432), (47880, 438606), (48734, 430920), (49560, 423738), (50274, 417720), (50445, 416304), (52038, 403560), (52215, 402192), (52920, 396834), (53808, 390285), (53865, 389872), (54929, 382320), (55696, 377055), (55755, 376656), (55860, 375948), (57456, 365505), (57820, 363204), (59472, 353115), (60534, 346920), (61560, 341138), (62658, 335160), (62776, 334530), (63504, 330695), (63720, 329574), (66139, 317520), (66906, 313880), (67032, 313290), (67260, 312228), (69384, 302670), (69620, 301644), (70623, 297360), (71820, 292404), (73101, 287280), (74340, 282492), (74480, 281961), (75411, 278480), (76464, 274645), (78057, 269040), (78470, 267624), (79380, 264556), (80712, 260190), (83544, 251370), (83790, 250632), (86184, 243670), (86730, 242136), (89208, 235410), (89680, 234171), (90801, 231280), (93987, 223440), (94164, 223020), (95580, 219716), (95760, 219303), (97468, 215460), (99120, 211869), (100548, 208860), (100890, 208152), (104076, 201780), (104430, 201096), (105840, 198417), (107730, 194936), (109858, 191160), (111510, 188328), (111720, 187974), (115640, 181602), (117705, 178416), (121068, 173460), (121835, 172368), (123120, 170569), (125316, 167580), (125552, 167265), (125685, 167088), (127440, 164787), (130095, 161424), (132278, 158760), (133812, 156940), (134064, 156645), (134520, 156114), (138768, 151335), (139240, 150822), (141246, 148680), (143640, 146202)]