21977277

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61561}}^1$

素因数の和:61588

約数の個数: 16

約数和(自身を含む): 35459712

約数和(自身を除く): 13482435

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61561, 184683, 430927, 1046537, 1292781, 3139611, 7325759, 21977277]

約数ペア:

[(1, 21977277), (3, 7325759), (7, 3139611), (17, 1292781), (21, 1046537), (51, 430927), (119, 184683), (357, 61561)]