2179305

素因数分解:

$3^4\times 5^1\times {\mathrm{5381}}^1$

素因数の和:5398

約数の個数: 20

約数和(自身を含む): 3907332

約数和(自身を除く): 1728027

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5381, 16143, 26905, 48429, 80715, 145287, 242145, 435861, 726435, 2179305]

約数ペア:

[(1, 2179305), (3, 726435), (5, 435861), (9, 242145), (15, 145287), (27, 80715), (45, 48429), (81, 26905), (135, 16143), (405, 5381)]