21274630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4423}}^1$

素因数の和:4480

約数の個数: 32

約数和(自身を含む): 42364224

約数和(自身を除く): 21089594

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4423, 4810, 8846, 22115, 44230, 57499, 114998, 163651, 287495, 327302, 574990, 818255, 1636510, 2127463, 4254926, 10637315, 21274630]

約数ペア:

[(1, 21274630), (2, 10637315), (5, 4254926), (10, 2127463), (13, 1636510), (26, 818255), (37, 574990), (65, 327302), (74, 287495), (130, 163651), (185, 114998), (370, 57499), (481, 44230), (962, 22115), (2405, 8846), (4423, 4810)]