20839305

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32309}}^1$

素因数の和:32360

約数の個数: 16

約数和(自身を含む): 34119360

約数和(自身を除く): 13280055

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32309, 96927, 161545, 484635, 1389287, 4167861, 6946435, 20839305]

約数ペア:

[(1, 20839305), (3, 6946435), (5, 4167861), (15, 1389287), (43, 484635), (129, 161545), (215, 96927), (645, 32309)]