21553406161

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{1609}}^1\times {\mathrm{18947}}^1$

素因数の和:20664

約数の個数: 16

約数和(自身を含む): 24893124480

約数和(自身を除く): 3339718319

約数列:

[1, 7, 101, 707, 1609, 11263, 18947, 132629, 162509, 1137563, 1913647, 13395529, 30485723, 213400061, 3079058023, 21553406161]

約数ペア:

[(1, 21553406161), (7, 3079058023), (101, 213400061), (707, 30485723), (1609, 13395529), (11263, 1913647), (18947, 1137563), (132629, 162509)]