20791771

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20771}}^1$

素因数の和:20802

約数の個数: 16

約数和(自身を含む): 27917568

約数和(自身を除く): 7125797

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 20771, 145397, 228481, 270023, 1599367, 1890161, 2970253, 20791771]

約数ペア:

[(1, 20791771), (7, 2970253), (11, 1890161), (13, 1599367), (77, 270023), (91, 228481), (143, 145397), (1001, 20771)]