20475679

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{4057}}^1$

素因数の和:4174

約数の個数: 12

約数和(自身を含む): 24055824

約数和(自身を除く): 3580145

約数列:

[1, 7, 49, 103, 721, 4057, 5047, 28399, 198793, 417871, 2925097, 20475679]

約数ペア:

[(1, 20475679), (7, 2925097), (49, 417871), (103, 198793), (721, 28399), (4057, 5047)]