18711345

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2963}}^1$

素因数の和:3392

約数の個数: 16

約数和(自身を含む): 30019392

約数和(自身を除く): 11308047

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 2963, 6315, 8889, 14815, 44445, 1247423, 3742269, 6237115, 18711345]

約数ペア:

[(1, 18711345), (3, 6237115), (5, 3742269), (15, 1247423), (421, 44445), (1263, 14815), (2105, 8889), (2963, 6315)]