25785621

素因数分解:

$3^4\times {\mathrm{449}}^1\times {\mathrm{709}}^1$

素因数の和:1170

約数の個数: 20

約数和(自身を含む): 38659500

約数和(自身を除く): 12873879

約数列:

[1, 3, 9, 27, 81, 449, 709, 1347, 2127, 4041, 6381, 12123, 19143, 36369, 57429, 318341, 955023, 2865069, 8595207, 25785621]

約数ペア:

[(1, 25785621), (3, 8595207), (9, 2865069), (27, 955023), (81, 318341), (449, 57429), (709, 36369), (1347, 19143), (2127, 12123), (4041, 6381)]