21436485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1873}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 39578880

約数和(自身を除く): 18142395

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 109, 327, 545, 763, 1635, 1873, 2289, 3815, 5619, 9365, 11445, 13111, 28095, 39333, 65555, 196665, 204157, 612471, 1020785, 1429099, 3062355, 4287297, 7145495, 21436485]

約数ペア:

[(1, 21436485), (3, 7145495), (5, 4287297), (7, 3062355), (15, 1429099), (21, 1020785), (35, 612471), (105, 204157), (109, 196665), (327, 65555), (545, 39333), (763, 28095), (1635, 13111), (1873, 11445), (2289, 9365), (3815, 5619)]