81478989

素因数分解:

$3^2\times {\mathrm{113}}^2\times {\mathrm{709}}^1$

素因数の和:941

約数の個数: 18

約数和(自身を含む): 118910090

約数和(自身を除く): 37431101

約数列:

[1, 3, 9, 113, 339, 709, 1017, 2127, 6381, 12769, 38307, 80117, 114921, 240351, 721053, 9053221, 27159663, 81478989]

約数ペア:

[(1, 81478989), (3, 27159663), (9, 9053221), (113, 721053), (339, 240351), (709, 114921), (1017, 80117), (2127, 38307), (6381, 12769)]