20255121

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3821}}^1$

素因数の和:3877

約数の個数: 24

約数和(自身を含む): 31799040

約数和(自身を除く): 11543919

約数列:

[1, 3, 9, 19, 31, 57, 93, 171, 279, 589, 1767, 3821, 5301, 11463, 34389, 72599, 118451, 217797, 355353, 653391, 1066059, 2250569, 6751707, 20255121]

約数ペア:

[(1, 20255121), (3, 6751707), (9, 2250569), (19, 1066059), (31, 653391), (57, 355353), (93, 217797), (171, 118451), (279, 72599), (589, 34389), (1767, 11463), (3821, 5301)]