18905282

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{78121}}^1$

素因数の和:78145

約数の個数: 12

約数和(自身を含む): 31170678

約数和(自身を除く): 12265396

約数列:

[1, 2, 11, 22, 121, 242, 78121, 156242, 859331, 1718662, 9452641, 18905282]

約数ペア:

[(1, 18905282), (2, 9452641), (11, 1718662), (22, 859331), (121, 156242), (242, 78121)]