18688571

素因数分解:

${\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:791

約数の個数: 16

約数和(自身を含む): 21667200

約数和(自身を除く): 2978629

約数列:

[1, 11, 19, 121, 209, 739, 1331, 2299, 8129, 14041, 25289, 89419, 154451, 983609, 1698961, 18688571]

約数ペア:

[(1, 18688571), (11, 1698961), (19, 983609), (121, 154451), (209, 89419), (739, 25289), (1331, 14041), (2299, 8129)]