121500000081

素因数分解:

$3^4\times {\mathrm{1500000001}}^1$

素因数の和:1500000013

約数の個数: 10

約数和(自身を含む): 181500000242

約数和(自身を除く): 60000000161

約数列:

[1, 3, 9, 27, 81, 1500000001, 4500000003, 13500000009, 40500000027, 121500000081]

約数ペア:

[(1, 121500000081), (3, 40500000027), (9, 13500000009), (27, 4500000003), (81, 1500000001)]