20457310321

素因数分解:

$7^2\times {\mathrm{137}}^1\times {\mathrm{3047417}}^1$

素因数の和:3047568

約数の個数: 12

約数和(自身を含む): 23970989988

約数和(自身を除く): 3513679667

約数列:

[1, 7, 49, 137, 959, 6713, 3047417, 21331919, 149323433, 417496129, 2922472903, 20457310321]

約数ペア:

[(1, 20457310321), (7, 2922472903), (49, 417496129), (137, 149323433), (959, 21331919), (6713, 3047417)]