20955759

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{2657}}^1$

素因数の和:2910

約数の個数: 16

約数和(自身を含む): 30620160

約数和(自身を除く): 9664401

約数列:

[1, 3, 11, 33, 239, 717, 2629, 2657, 7887, 7971, 29227, 87681, 635023, 1905069, 6985253, 20955759]

約数ペア:

[(1, 20955759), (3, 6985253), (11, 1905069), (33, 635023), (239, 87681), (717, 29227), (2629, 7971), (2657, 7887)]