81409727

素因数分解:

$7^2\times {\mathrm{631}}^1\times {\mathrm{2633}}^1$

素因数の和:3278

約数の個数: 12

約数和(自身を含む): 94887216

約数和(自身を除く): 13477489

約数列:

[1, 7, 49, 631, 2633, 4417, 18431, 30919, 129017, 1661423, 11629961, 81409727]

約数ペア:

[(1, 81409727), (7, 11629961), (49, 1661423), (631, 129017), (2633, 30919), (4417, 18431)]