19786895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1777}}^1$

素因数の和:1930

約数の個数: 16

約数和(自身を含む): 25347168

約数和(自身を除く): 5560273

約数列:

[1, 5, 17, 85, 131, 655, 1777, 2227, 8885, 11135, 30209, 151045, 232787, 1163935, 3957379, 19786895]

約数ペア:

[(1, 19786895), (5, 3957379), (17, 1163935), (85, 232787), (131, 151045), (655, 30209), (1777, 11135), (2227, 8885)]