81331578

素因数分解:

$2^1\times 3^2\times {\mathrm{4518421}}^1$

素因数の和:4518429

約数の個数: 12

約数和(自身を含む): 176218458

約数和(自身を除く): 94886880

約数列:

[1, 2, 3, 6, 9, 18, 4518421, 9036842, 13555263, 27110526, 40665789, 81331578]

約数ペア:

[(1, 81331578), (2, 40665789), (3, 27110526), (6, 13555263), (9, 9036842), (18, 4518421)]