20394521

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 23912064

約数和(自身を除く): 3517543

約数列:

[1, 7, 73, 107, 373, 511, 749, 2611, 7811, 27229, 39911, 54677, 190603, 279377, 2913503, 20394521]

約数ペア:

[(1, 20394521), (7, 2913503), (73, 279377), (107, 190603), (373, 54677), (511, 39911), (749, 27229), (2611, 7811)]