18814815

素因数分解:

$3^3\times 5^1\times {\mathrm{139369}}^1$

素因数の和:139383

約数の個数: 16

約数和(自身を含む): 33448800

約数和(自身を除く): 14633985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139369, 418107, 696845, 1254321, 2090535, 3762963, 6271605, 18814815]

約数ペア:

[(1, 18814815), (3, 6271605), (5, 3762963), (9, 2090535), (15, 1254321), (27, 696845), (45, 418107), (135, 139369)]