81540999

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{11311}}^1$

素因数の和:11412

約数の個数: 20

約数和(自身を含む): 123187680

約数和(自身を除く): 41646681

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 11311, 33933, 101799, 305397, 916191, 1006679, 3020037, 9060111, 27180333, 81540999]

約数ペア:

[(1, 81540999), (3, 27180333), (9, 9060111), (27, 3020037), (81, 1006679), (89, 916191), (267, 305397), (801, 101799), (2403, 33933), (7209, 11311)]