20178812043

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{57489493}}^1$

素因数の和:57489515

約数の個数: 16

約数和(自身を含む): 32194116640

約数和(自身を除く): 12015304597

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 57489493, 172468479, 517405437, 747363409, 1552216311, 2242090227, 6726270681, 20178812043]

約数ペア:

[(1, 20178812043), (3, 6726270681), (9, 2242090227), (13, 1552216311), (27, 747363409), (39, 517405437), (117, 172468479), (351, 57489493)]