20839347

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 31394688

約数和(自身を除く): 10555341

約数列:

[1, 3, 9, 31, 93, 113, 279, 339, 661, 1017, 1983, 3503, 5949, 10509, 20491, 31527, 61473, 74693, 184419, 224079, 672237, 2315483, 6946449, 20839347]

約数ペア:

[(1, 20839347), (3, 6946449), (9, 2315483), (31, 672237), (93, 224079), (113, 184419), (279, 74693), (339, 61473), (661, 31527), (1017, 20491), (1983, 10509), (3503, 5949)]