80715879

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{21821}}^1$

素因数の和:21967

約数の個数: 16

約数和(自身を含む): 120457440

約数和(自身を除く): 39741561

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 21821, 65463, 196389, 589167, 2989477, 8968431, 26905293, 80715879]

約数ペア:

[(1, 80715879), (3, 26905293), (9, 8968431), (27, 2989477), (137, 589167), (411, 196389), (1233, 65463), (3699, 21821)]