20396721

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1193}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 28082880

約数和(自身を除く): 7686159

約数列:

[1, 3, 41, 123, 139, 417, 1193, 3579, 5699, 17097, 48913, 146739, 165827, 497481, 6798907, 20396721]

約数ペア:

[(1, 20396721), (3, 6798907), (41, 497481), (123, 165827), (139, 146739), (417, 48913), (1193, 17097), (3579, 5699)]