20646445

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3061}}^1$

素因数の和:3156

約数の個数: 16

約数和(自身を含む): 26455680

約数和(自身を除く): 5809235

約数列:

[1, 5, 19, 71, 95, 355, 1349, 3061, 6745, 15305, 58159, 217331, 290795, 1086655, 4129289, 20646445]

約数ペア:

[(1, 20646445), (5, 4129289), (19, 1086655), (71, 290795), (95, 217331), (355, 58159), (1349, 15305), (3061, 6745)]