18249217

素因数分解:

$7^2\times {\mathrm{131}}^1\times {\mathrm{2843}}^1$

素因数の和:2988

約数の個数: 12

約数和(自身を含む): 21398256

約数和(自身を除く): 3149039

約数列:

[1, 7, 49, 131, 917, 2843, 6419, 19901, 139307, 372433, 2607031, 18249217]

約数ペア:

[(1, 18249217), (7, 2607031), (49, 372433), (131, 139307), (917, 19901), (2843, 6419)]