18802005

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43223}}^1$

素因数の和:43260

約数の個数: 16

約数和(自身を含む): 31121280

約数和(自身を除く): 12319275

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 43223, 129669, 216115, 648345, 1253467, 3760401, 6267335, 18802005]

約数ペア:

[(1, 18802005), (3, 6267335), (5, 3760401), (15, 1253467), (29, 648345), (87, 216115), (145, 129669), (435, 43223)]