21737970

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{571}}^1$

素因数の和:637

約数の個数: 80

約数和(自身を含む): 59799168

約数和(自身を除く): 38061198

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 47, 54, 81, 90, 94, 135, 141, 162, 235, 270, 282, 405, 423, 470, 571, 705, 810, 846, 1142, 1269, 1410, 1713, 2115, 2538, 2855, 3426, 3807, 4230, 5139, 5710, 6345, 7614, 8565, 10278, 12690, 15417, 17130, 19035, 25695, 26837, 30834, 38070, 46251, 51390, 53674, 77085, 80511, 92502, 134185, 154170, 161022, 231255, 241533, 268370, 402555, 462510, 483066, 724599, 805110, 1207665, 1449198, 2173797, 2415330, 3622995, 4347594, 7245990, 10868985, 21737970]

約数ペア:

[(1, 21737970), (2, 10868985), (3, 7245990), (5, 4347594), (6, 3622995), (9, 2415330), (10, 2173797), (15, 1449198), (18, 1207665), (27, 805110), (30, 724599), (45, 483066), (47, 462510), (54, 402555), (81, 268370), (90, 241533), (94, 231255), (135, 161022), (141, 154170), (162, 134185), (235, 92502), (270, 80511), (282, 77085), (405, 53674), (423, 51390), (470, 46251), (571, 38070), (705, 30834), (810, 26837), (846, 25695), (1142, 19035), (1269, 17130), (1410, 15417), (1713, 12690), (2115, 10278), (2538, 8565), (2855, 7614), (3426, 6345), (3807, 5710), (4230, 5139)]