13890121

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{577}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 16831360

約数和(自身を除く): 2941239

約数列:

[1, 7, 19, 133, 181, 577, 1267, 3439, 4039, 10963, 24073, 76741, 104437, 731059, 1984303, 13890121]

約数ペア:

[(1, 13890121), (7, 1984303), (19, 731059), (133, 104437), (181, 76741), (577, 24073), (1267, 10963), (3439, 4039)]