21311810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5653}}^1$

素因数の和:5702

約数の個数: 32

約数和(自身を含む): 42744240

約数和(自身を除く): 21432430

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5653, 11306, 28265, 56530, 73489, 146978, 163937, 327874, 367445, 734890, 819685, 1639370, 2131181, 4262362, 10655905, 21311810]

約数ペア:

[(1, 21311810), (2, 10655905), (5, 4262362), (10, 2131181), (13, 1639370), (26, 819685), (29, 734890), (58, 367445), (65, 327874), (130, 163937), (145, 146978), (290, 73489), (377, 56530), (754, 28265), (1885, 11306), (3770, 5653)]