81620556

素因数分解:

$2^2\times 3^1\times {\mathrm{6801713}}^1$

素因数の和:6801720

約数の個数: 12

約数和(自身を含む): 190447992

約数和(自身を除く): 108827436

約数列:

[1, 2, 3, 4, 6, 12, 6801713, 13603426, 20405139, 27206852, 40810278, 81620556]

約数ペア:

[(1, 81620556), (2, 40810278), (3, 27206852), (4, 20405139), (6, 13603426), (12, 6801713)]