19917340

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1471}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 41916672

約数和(自身を除く): 21999332

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1471, 2708, 2942, 3385, 5884, 6770, 7355, 13540, 14710, 29420, 995867, 1991734, 3983468, 4979335, 9958670, 19917340]

約数ペア:

[(1, 19917340), (2, 9958670), (4, 4979335), (5, 3983468), (10, 1991734), (20, 995867), (677, 29420), (1354, 14710), (1471, 13540), (2708, 7355), (2942, 6770), (3385, 5884)]