12821453145

素因数分解:

$3^4\times 5^1\times {\mathrm{31657909}}^1$

素因数の和:31657926

約数の個数: 20

約数和(自身を含む): 22983642660

約数和(自身を除く): 10162189515

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31657909, 94973727, 158289545, 284921181, 474868635, 854763543, 1424605905, 2564290629, 4273817715, 12821453145]

約数ペア:

[(1, 12821453145), (3, 4273817715), (5, 2564290629), (9, 1424605905), (15, 854763543), (27, 474868635), (45, 284921181), (81, 158289545), (135, 94973727), (405, 31657909)]