867915

素因数分解:

$3^4\times 5^1\times {\mathrm{2143}}^1$

素因数の和:2160

約数の個数: 20

約数和(自身を含む): 1556544

約数和(自身を除く): 688629

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2143, 6429, 10715, 19287, 32145, 57861, 96435, 173583, 289305, 867915]

約数ペア:

[(1, 867915), (3, 289305), (5, 173583), (9, 96435), (15, 57861), (27, 32145), (45, 19287), (81, 10715), (135, 6429), (405, 2143)]