81399357

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{17839}}^1$

素因数の和:17874

約数の個数: 24

約数和(自身を含む): 130588800

約数和(自身を除く): 49189443

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 17839, 53517, 160551, 231907, 481653, 695721, 2087163, 3014791, 6261489, 9044373, 27133119, 81399357]

約数ペア:

[(1, 81399357), (3, 27133119), (9, 9044373), (13, 6261489), (27, 3014791), (39, 2087163), (117, 695721), (169, 481653), (351, 231907), (507, 160551), (1521, 53517), (4563, 17839)]