21000605780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:343

約数の個数: 384

約数和(自身を含む): 59570380800

約数和(自身を除く): 38569775020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 37, 44, 55, 58, 70, 71, 74, 77, 110, 116, 140, 142, 145, 148, 154, 179, 185, 203, 220, 259, 284, 290, 308, 319, 355, 358, 370, 385, 406, 407, 497, 518, 580, 638, 710, 716, 740, 770, 781, 812, 814, 895, 994, 1015, 1036, 1073, 1253, 1276, 1295, 1420, 1540, 1562, 1595, 1628, 1790, 1969, 1988, 2030, 2035, 2059, 2146, 2233, 2485, 2506, 2590, 2627, 2849, 3124, 3190, 3580, 3905, 3938, 4060, 4070, 4118, 4292, 4466, 4970, 5012, 5180, 5191, 5254, 5365, 5467, 5698, 6265, 6380, 6623, 7511, 7810, 7876, 8140, 8236, 8932, 9845, 9940, 10295, 10382, 10508, 10730, 10934, 11165, 11396, 11803, 12530, 12709, 13135, 13246, 13783, 14245, 14413, 15022, 15620, 18389, 19690, 20590, 20764, 21460, 21868, 22330, 22649, 23606, 25060, 25418, 25955, 26270, 26492, 27335, 27566, 28490, 28826, 28897, 30044, 33115, 36337, 36778, 37555, 39380, 41180, 44660, 45298, 46361, 47212, 50836, 51910, 52540, 54670, 55132, 56980, 57101, 57652, 57794, 59015, 63545, 66230, 68915, 72065, 72674, 72853, 73556, 75110, 76183, 82621, 88963, 90596, 91945, 92722, 103820, 109340, 113245, 114202, 115588, 118030, 127090, 132460, 137830, 139799, 144130, 144485, 145348, 145706, 150220, 152366, 158543, 165242, 177926, 181685, 183890, 185444, 192067, 202279, 226490, 228404, 231805, 236060, 254180, 275660, 279598, 285505, 288260, 288970, 291412, 304732, 317086, 330484, 355852, 363370, 364265, 367780, 368561, 380915, 384134, 399707, 404558, 413105, 444815, 452980, 463610, 470233, 509971, 533281, 559196, 571010, 577940, 634172, 698995, 726740, 728530, 737122, 761830, 768268, 792715, 799414, 809116, 826210, 838013, 889630, 927220, 940466, 960335, 978593, 1011395, 1019942, 1066562, 1142020, 1344469, 1397990, 1457060, 1474244, 1523660, 1585430, 1598828, 1652420, 1676026, 1779260, 1842805, 1880932, 1920670, 1957186, 1998535, 2022790, 2039884, 2112737, 2133124, 2351165, 2549855, 2579927, 2666405, 2688938, 2795980, 3170860, 3291631, 3352052, 3685610, 3841340, 3914372, 3997070, 4045580, 4054171, 4190065, 4225474, 4702330, 4892965, 5099710, 5159854, 5172563, 5332810, 5377876, 5866091, 6583262, 6722345, 7371220, 7994140, 8108342, 8380130, 8450948, 9404660, 9785930, 10199420, 10319708, 10345126, 10563685, 10665620, 11732182, 12899635, 13166524, 13444690, 13636757, 14789159, 16216684, 16458155, 16760260, 19571860, 20270855, 20690252, 21127370, 23464364, 25799270, 25862815, 26889380, 27273514, 28379197, 29330455, 29578318, 32916310, 36207941, 40541710, 42254740, 51598540, 51725630, 54547028, 56758394, 58660910, 59156636, 65832620, 68183785, 72415882, 73945795, 81083420, 95457299, 103451260, 113516788, 117321820, 136367570, 141895985, 144831764, 147891590, 150004327, 181039705, 190914598, 272735140, 283791970, 295783180, 300008654, 362079410, 381829196, 477286495, 567583940, 600017308, 724158820, 750021635, 954572990, 1050030289, 1500043270, 1909145980, 2100060578, 3000086540, 4200121156, 5250151445, 10500302890, 21000605780]

約数ペア:

[(1, 21000605780), (2, 10500302890), (4, 5250151445), (5, 4200121156), (7, 3000086540), (10, 2100060578), (11, 1909145980), (14, 1500043270), (20, 1050030289), (22, 954572990), (28, 750021635), (29, 724158820), (35, 600017308), (37, 567583940), (44, 477286495), (55, 381829196), (58, 362079410), (70, 300008654), (71, 295783180), (74, 283791970), (77, 272735140), (110, 190914598), (116, 181039705), (140, 150004327), (142, 147891590), (145, 144831764), (148, 141895985), (154, 136367570), (179, 117321820), (185, 113516788), (203, 103451260), (220, 95457299), (259, 81083420), (284, 73945795), (290, 72415882), (308, 68183785), (319, 65832620), (355, 59156636), (358, 58660910), (370, 56758394), (385, 54547028), (406, 51725630), (407, 51598540), (497, 42254740), (518, 40541710), (580, 36207941), (638, 32916310), (710, 29578318), (716, 29330455), (740, 28379197), (770, 27273514), (781, 26889380), (812, 25862815), (814, 25799270), (895, 23464364), (994, 21127370), (1015, 20690252), (1036, 20270855), (1073, 19571860), (1253, 16760260), (1276, 16458155), (1295, 16216684), (1420, 14789159), (1540, 13636757), (1562, 13444690), (1595, 13166524), (1628, 12899635), (1790, 11732182), (1969, 10665620), (1988, 10563685), (2030, 10345126), (2035, 10319708), (2059, 10199420), (2146, 9785930), (2233, 9404660), (2485, 8450948), (2506, 8380130), (2590, 8108342), (2627, 7994140), (2849, 7371220), (3124, 6722345), (3190, 6583262), (3580, 5866091), (3905, 5377876), (3938, 5332810), (4060, 5172563), (4070, 5159854), (4118, 5099710), (4292, 4892965), (4466, 4702330), (4970, 4225474), (5012, 4190065), (5180, 4054171), (5191, 4045580), (5254, 3997070), (5365, 3914372), (5467, 3841340), (5698, 3685610), (6265, 3352052), (6380, 3291631), (6623, 3170860), (7511, 2795980), (7810, 2688938), (7876, 2666405), (8140, 2579927), (8236, 2549855), (8932, 2351165), (9845, 2133124), (9940, 2112737), (10295, 2039884), (10382, 2022790), (10508, 1998535), (10730, 1957186), (10934, 1920670), (11165, 1880932), (11396, 1842805), (11803, 1779260), (12530, 1676026), (12709, 1652420), (13135, 1598828), (13246, 1585430), (13783, 1523660), (14245, 1474244), (14413, 1457060), (15022, 1397990), (15620, 1344469), (18389, 1142020), (19690, 1066562), (20590, 1019942), (20764, 1011395), (21460, 978593), (21868, 960335), (22330, 940466), (22649, 927220), (23606, 889630), (25060, 838013), (25418, 826210), (25955, 809116), (26270, 799414), (26492, 792715), (27335, 768268), (27566, 761830), (28490, 737122), (28826, 728530), (28897, 726740), (30044, 698995), (33115, 634172), (36337, 577940), (36778, 571010), (37555, 559196), (39380, 533281), (41180, 509971), (44660, 470233), (45298, 463610), (46361, 452980), (47212, 444815), (50836, 413105), (51910, 404558), (52540, 399707), (54670, 384134), (55132, 380915), (56980, 368561), (57101, 367780), (57652, 364265), (57794, 363370), (59015, 355852), (63545, 330484), (66230, 317086), (68915, 304732), (72065, 291412), (72674, 288970), (72853, 288260), (73556, 285505), (75110, 279598), (76183, 275660), (82621, 254180), (88963, 236060), (90596, 231805), (91945, 228404), (92722, 226490), (103820, 202279), (109340, 192067), (113245, 185444), (114202, 183890), (115588, 181685), (118030, 177926), (127090, 165242), (132460, 158543), (137830, 152366), (139799, 150220), (144130, 145706), (144485, 145348)]