20157461721

素因数分解:

$3^2\times {\mathrm{113}}^1\times {\mathrm{19820513}}^1$

素因数の和:19820632

約数の個数: 12

約数和(自身を含む): 29374001748

約数和(自身を除く): 9216540027

約数列:

[1, 3, 9, 113, 339, 1017, 19820513, 59461539, 178384617, 2239717969, 6719153907, 20157461721]

約数ペア:

[(1, 20157461721), (3, 6719153907), (9, 2239717969), (113, 178384617), (339, 59461539), (1017, 19820513)]