81507027

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{228311}}^1$

素因数の和:228338

約数の個数: 16

約数和(自身を含む): 131507712

約数和(自身を除く): 50000685

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 228311, 684933, 1598177, 3881287, 4794531, 11643861, 27169009, 81507027]

約数ペア:

[(1, 81507027), (3, 27169009), (7, 11643861), (17, 4794531), (21, 3881287), (51, 1598177), (119, 684933), (357, 228311)]