31394961

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{20641}}^1$

素因数の和:20673

約数の個数: 18

約数和(自身を含む): 49107318

約数和(自身を除く): 17712357

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 20641, 61923, 185769, 268333, 804999, 2414997, 3488329, 10464987, 31394961]

約数ペア:

[(1, 31394961), (3, 10464987), (9, 3488329), (13, 2414997), (39, 804999), (117, 268333), (169, 185769), (507, 61923), (1521, 20641)]