21000470430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{4013}}^1$

素因数の和:4402

約数の個数: 128

約数和(自身を含む): 55267577856

約数和(自身を除く): 34267107426

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 31, 34, 51, 62, 85, 93, 102, 155, 170, 186, 255, 310, 331, 465, 510, 527, 662, 930, 993, 1054, 1581, 1655, 1986, 2635, 3162, 3310, 4013, 4965, 5270, 5627, 7905, 8026, 9930, 10261, 11254, 12039, 15810, 16881, 20065, 20522, 24078, 28135, 30783, 33762, 40130, 51305, 56270, 60195, 61566, 68221, 84405, 102610, 120390, 124403, 136442, 153915, 168810, 174437, 204663, 248806, 307830, 341105, 348874, 373209, 409326, 523311, 622015, 682210, 746418, 872185, 1023315, 1046622, 1244030, 1328303, 1744370, 1866045, 2046630, 2114851, 2616555, 2656606, 3732090, 3984909, 4229702, 5233110, 6344553, 6641515, 7969818, 10574255, 12689106, 13283030, 19924545, 21148510, 22581151, 31722765, 39849090, 41177393, 45162302, 63445530, 67743453, 82354786, 112905755, 123532179, 135486906, 205886965, 225811510, 247064358, 338717265, 411773930, 617660895, 677434530, 700015681, 1235321790, 1400031362, 2100047043, 3500078405, 4200094086, 7000156810, 10500235215, 21000470430]

約数ペア:

[(1, 21000470430), (2, 10500235215), (3, 7000156810), (5, 4200094086), (6, 3500078405), (10, 2100047043), (15, 1400031362), (17, 1235321790), (30, 700015681), (31, 677434530), (34, 617660895), (51, 411773930), (62, 338717265), (85, 247064358), (93, 225811510), (102, 205886965), (155, 135486906), (170, 123532179), (186, 112905755), (255, 82354786), (310, 67743453), (331, 63445530), (465, 45162302), (510, 41177393), (527, 39849090), (662, 31722765), (930, 22581151), (993, 21148510), (1054, 19924545), (1581, 13283030), (1655, 12689106), (1986, 10574255), (2635, 7969818), (3162, 6641515), (3310, 6344553), (4013, 5233110), (4965, 4229702), (5270, 3984909), (5627, 3732090), (7905, 2656606), (8026, 2616555), (9930, 2114851), (10261, 2046630), (11254, 1866045), (12039, 1744370), (15810, 1328303), (16881, 1244030), (20065, 1046622), (20522, 1023315), (24078, 872185), (28135, 746418), (30783, 682210), (33762, 622015), (40130, 523311), (51305, 409326), (56270, 373209), (60195, 348874), (61566, 341105), (68221, 307830), (84405, 248806), (102610, 204663), (120390, 174437), (124403, 168810), (136442, 153915)]