21712860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1031}}^1$

素因数の和:1065

約数の個数: 120

約数和(自身を含む): 73424736

約数和(自身を除く): 51711876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1031, 1053, 1170, 1404, 1620, 1755, 2062, 2106, 2340, 3093, 3510, 4124, 4212, 5155, 5265, 6186, 7020, 9279, 10310, 10530, 12372, 13403, 15465, 18558, 20620, 21060, 26806, 27837, 30930, 37116, 40209, 46395, 53612, 55674, 61860, 67015, 80418, 83511, 92790, 111348, 120627, 134030, 139185, 160836, 167022, 185580, 201045, 241254, 268060, 278370, 334044, 361881, 402090, 417555, 482508, 556740, 603135, 723762, 804180, 835110, 1085643, 1206270, 1447524, 1670220, 1809405, 2171286, 2412540, 3618810, 4342572, 5428215, 7237620, 10856430, 21712860]

約数ペア:

[(1, 21712860), (2, 10856430), (3, 7237620), (4, 5428215), (5, 4342572), (6, 3618810), (9, 2412540), (10, 2171286), (12, 1809405), (13, 1670220), (15, 1447524), (18, 1206270), (20, 1085643), (26, 835110), (27, 804180), (30, 723762), (36, 603135), (39, 556740), (45, 482508), (52, 417555), (54, 402090), (60, 361881), (65, 334044), (78, 278370), (81, 268060), (90, 241254), (108, 201045), (117, 185580), (130, 167022), (135, 160836), (156, 139185), (162, 134030), (180, 120627), (195, 111348), (234, 92790), (260, 83511), (270, 80418), (324, 67015), (351, 61860), (390, 55674), (405, 53612), (468, 46395), (540, 40209), (585, 37116), (702, 30930), (780, 27837), (810, 26806), (1031, 21060), (1053, 20620), (1170, 18558), (1404, 15465), (1620, 13403), (1755, 12372), (2062, 10530), (2106, 10310), (2340, 9279), (3093, 7020), (3510, 6186), (4124, 5265), (4212, 5155)]