278836749

素因数分解:

$3^4\times {\mathrm{1229}}^1\times {\mathrm{2801}}^1$

素因数の和:4042

約数の個数: 20

約数和(自身を含む): 417021660

約数和(自身を除く): 138184911

約数列:

[1, 3, 9, 27, 81, 1229, 2801, 3687, 8403, 11061, 25209, 33183, 75627, 99549, 226881, 3442429, 10327287, 30981861, 92945583, 278836749]

約数ペア:

[(1, 278836749), (3, 92945583), (9, 30981861), (27, 10327287), (81, 3442429), (1229, 226881), (2801, 99549), (3687, 75627), (8403, 33183), (11061, 25209)]