20428093

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{977}}^1$

素因数の和:1116

約数の個数: 16

約数和(自身を含む): 24410880

約数和(自身を除く): 3982787

約数列:

[1, 7, 29, 103, 203, 721, 977, 2987, 6839, 20909, 28333, 100631, 198331, 704417, 2918299, 20428093]

約数ペア:

[(1, 20428093), (7, 2918299), (29, 704417), (103, 198331), (203, 100631), (721, 28333), (977, 20909), (2987, 6839)]