21571860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2381}}^1$

素因数の和:2544

約数の個数: 48

約数和(自身を含む): 60826752

約数和(自身を除く): 39254892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 151, 302, 453, 604, 755, 906, 1510, 1812, 2265, 2381, 3020, 4530, 4762, 7143, 9060, 9524, 11905, 14286, 23810, 28572, 35715, 47620, 71430, 142860, 359531, 719062, 1078593, 1438124, 1797655, 2157186, 3595310, 4314372, 5392965, 7190620, 10785930, 21571860]

約数ペア:

[(1, 21571860), (2, 10785930), (3, 7190620), (4, 5392965), (5, 4314372), (6, 3595310), (10, 2157186), (12, 1797655), (15, 1438124), (20, 1078593), (30, 719062), (60, 359531), (151, 142860), (302, 71430), (453, 47620), (604, 35715), (755, 28572), (906, 23810), (1510, 14286), (1812, 11905), (2265, 9524), (2381, 9060), (3020, 7143), (4530, 4762)]