27908145

素因数分解:

$3^4\times 5^1\times {\mathrm{68909}}^1$

素因数の和:68926

約数の個数: 20

約数和(自身を含む): 50028660

約数和(自身を除く): 22120515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68909, 206727, 344545, 620181, 1033635, 1860543, 3100905, 5581629, 9302715, 27908145]

約数ペア:

[(1, 27908145), (3, 9302715), (5, 5581629), (9, 3100905), (15, 1860543), (27, 1033635), (45, 620181), (81, 344545), (135, 206727), (405, 68909)]