20406315

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33181}}^1$

素因数の和:33230

約数の個数: 16

約数和(自身を含む): 33447456

約数和(自身を除く): 13041141

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33181, 99543, 165905, 497715, 1360421, 4081263, 6802105, 20406315]

約数ペア:

[(1, 20406315), (3, 6802105), (5, 4081263), (15, 1360421), (41, 497715), (123, 165905), (205, 99543), (615, 33181)]