20117578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1949}}^1$

素因数の和:2361

約数の個数: 16

約数和(自身を含む): 32596200

約数和(自身を除く): 12478622

約数列:

[1, 2, 13, 26, 397, 794, 1949, 3898, 5161, 10322, 25337, 50674, 773753, 1547506, 10058789, 20117578]

約数ペア:

[(1, 20117578), (2, 10058789), (13, 1547506), (26, 773753), (397, 50674), (794, 25337), (1949, 10322), (3898, 5161)]