81428166

素因数分解:

$2^1\times 3^4\times {\mathrm{502643}}^1$

素因数の和:502657

約数の個数: 20

約数和(自身を含む): 182459772

約数和(自身を除く): 101031606

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 502643, 1005286, 1507929, 3015858, 4523787, 9047574, 13571361, 27142722, 40714083, 81428166]

約数ペア:

[(1, 81428166), (2, 40714083), (3, 27142722), (6, 13571361), (9, 9047574), (18, 4523787), (27, 3015858), (54, 1507929), (81, 1005286), (162, 502643)]