18497855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{911}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 4615873

約数列:

[1, 5, 31, 131, 155, 655, 911, 4061, 4555, 20305, 28241, 119341, 141205, 596705, 3699571, 18497855]

約数ペア:

[(1, 18497855), (5, 3699571), (31, 596705), (131, 141205), (155, 119341), (655, 28241), (911, 20305), (4061, 4555)]