18538335

素因数分解:

$3^3\times 5^1\times {\mathrm{137321}}^1$

素因数の和:137335

約数の個数: 16

約数和(自身を含む): 32957280

約数和(自身を除く): 14418945

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137321, 411963, 686605, 1235889, 2059815, 3707667, 6179445, 18538335]

約数ペア:

[(1, 18538335), (3, 6179445), (5, 3707667), (9, 2059815), (15, 1235889), (27, 686605), (45, 411963), (135, 137321)]