21809333

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{541}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 26952576

約数和(自身を除く): 5143243

約数列:

[1, 7, 13, 91, 443, 541, 3101, 3787, 5759, 7033, 40313, 49231, 239663, 1677641, 3115619, 21809333]

約数ペア:

[(1, 21809333), (7, 3115619), (13, 1677641), (91, 239663), (443, 49231), (541, 40313), (3101, 7033), (3787, 5759)]