18530205

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28729}}^1$

素因数の和:28780

約数の個数: 16

約数和(自身を含む): 30338880

約数和(自身を除く): 11808675

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 28729, 86187, 143645, 430935, 1235347, 3706041, 6176735, 18530205]

約数ペア:

[(1, 18530205), (3, 6176735), (5, 3706041), (15, 1235347), (43, 430935), (129, 143645), (215, 86187), (645, 28729)]