865720881

素因数分解:

$3^2\times {\mathrm{2131}}^1\times {\mathrm{45139}}^1$

素因数の和:47276

約数の個数: 12

約数和(自身を含む): 1251100240

約数和(自身を除く): 385379359

約数列:

[1, 3, 9, 2131, 6393, 19179, 45139, 135417, 406251, 96191209, 288573627, 865720881]

約数ペア:

[(1, 865720881), (3, 288573627), (9, 96191209), (2131, 406251), (6393, 135417), (19179, 45139)]