20504057

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{3251}}^1$

素因数の和:3328

約数の個数: 16

約数和(自身を含む): 25287552

約数和(自身を除く): 4783495

約数列:

[1, 7, 17, 53, 119, 371, 901, 3251, 6307, 22757, 55267, 172303, 386869, 1206121, 2929151, 20504057]

約数ペア:

[(1, 20504057), (7, 2929151), (17, 1206121), (53, 386869), (119, 172303), (371, 55267), (901, 22757), (3251, 6307)]