20845279

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{577}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 25764928

約数和(自身を除く): 4919649

約数列:

[1, 7, 13, 91, 397, 577, 2779, 4039, 5161, 7501, 36127, 52507, 229069, 1603483, 2977897, 20845279]

約数ペア:

[(1, 20845279), (7, 2977897), (13, 1603483), (91, 229069), (397, 52507), (577, 36127), (2779, 7501), (4039, 5161)]