20255521

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 24429440

約数和(自身を除く): 4173919

約数列:

[1, 11, 13, 79, 121, 143, 163, 869, 1027, 1573, 1793, 2119, 9559, 11297, 12877, 19723, 23309, 124267, 141647, 167401, 256399, 1558117, 1841411, 20255521]

約数ペア:

[(1, 20255521), (11, 1841411), (13, 1558117), (79, 256399), (121, 167401), (143, 141647), (163, 124267), (869, 23309), (1027, 19723), (1573, 12877), (1793, 11297), (2119, 9559)]