18311237

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 16

約数和(自身を含む): 21415680

約数和(自身を除く): 3104443

約数列:

[1, 7, 103, 109, 233, 721, 763, 1631, 11227, 23999, 25397, 78589, 167993, 177779, 2615891, 18311237]

約数ペア:

[(1, 18311237), (7, 2615891), (103, 177779), (109, 167993), (233, 78589), (721, 25397), (763, 23999), (1631, 11227)]