20448141

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1231}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 32022144

約数和(自身を除く): 11574003

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 1231, 2373, 3693, 5537, 8617, 16611, 25851, 60319, 139103, 180957, 417309, 973721, 2921163, 6816047, 20448141]

約数ペア:

[(1, 20448141), (3, 6816047), (7, 2921163), (21, 973721), (49, 417309), (113, 180957), (147, 139103), (339, 60319), (791, 25851), (1231, 16611), (2373, 8617), (3693, 5537)]