861435

素因数分解:

$3^5\times 5^1\times {\mathrm{709}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 1550640

約数和(自身を除く): 689205

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 709, 1215, 2127, 3545, 6381, 10635, 19143, 31905, 57429, 95715, 172287, 287145, 861435]

約数ペア:

[(1, 861435), (3, 287145), (5, 172287), (9, 95715), (15, 57429), (27, 31905), (45, 19143), (81, 10635), (135, 6381), (243, 3545), (405, 2127), (709, 1215)]