80142489

素因数分解:

$3^2\times 7^2\times {\mathrm{181729}}^1$

素因数の和:181749

約数の個数: 18

約数和(自身を含む): 134661930

約数和(自身を除く): 54519441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 181729, 545187, 1272103, 1635561, 3816309, 8904721, 11448927, 26714163, 80142489]

約数ペア:

[(1, 80142489), (3, 26714163), (7, 11448927), (9, 8904721), (21, 3816309), (49, 1635561), (63, 1272103), (147, 545187), (441, 181729)]