20431195

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1531}}^1$

素因数の和:1710

約数の個数: 16

約数和(自身を含む): 26142048

約数和(自身を除く): 5710853

約数列:

[1, 5, 17, 85, 157, 785, 1531, 2669, 7655, 13345, 26027, 130135, 240367, 1201835, 4086239, 20431195]

約数ペア:

[(1, 20431195), (5, 4086239), (17, 1201835), (85, 240367), (157, 130135), (785, 26027), (1531, 13345), (2669, 7655)]