81315218

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{3529}}^1$

素因数の和:3853

約数の個数: 16

約数和(自身を含む): 125427960

約数和(自身を除く): 44112742

約数列:

[1, 2, 41, 82, 281, 562, 3529, 7058, 11521, 23042, 144689, 289378, 991649, 1983298, 40657609, 81315218]

約数ペア:

[(1, 81315218), (2, 40657609), (41, 1983298), (82, 991649), (281, 289378), (562, 144689), (3529, 23042), (7058, 11521)]