19729619

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{11411}}^1$

素因数の和:11450

約数の個数: 16

約数和(自身を含む): 25562880

約数和(自身を除く): 5833261

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 11411, 79877, 148343, 216809, 1038401, 1517663, 2818517, 19729619]

約数ペア:

[(1, 19729619), (7, 2818517), (13, 1517663), (19, 1038401), (91, 216809), (133, 148343), (247, 79877), (1729, 11411)]