17979891

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{3767}}^1$

素因数の和:3850

約数の個数: 16

約数和(自身を含む): 25200384

約数和(自身を除く): 7220493

約数列:

[1, 3, 37, 43, 111, 129, 1591, 3767, 4773, 11301, 139379, 161981, 418137, 485943, 5993297, 17979891]

約数ペア:

[(1, 17979891), (3, 5993297), (37, 485943), (43, 418137), (111, 161981), (129, 139379), (1591, 11301), (3767, 4773)]