81809222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{15559}}^1$

素因数の和:15811

約数の個数: 16

約数和(自身を含む): 134438400

約数和(自身を除く): 52629178

約数列:

[1, 2, 11, 22, 239, 478, 2629, 5258, 15559, 31118, 171149, 342298, 3718601, 7437202, 40904611, 81809222]

約数ペア:

[(1, 81809222), (2, 40904611), (11, 7437202), (22, 3718601), (239, 342298), (478, 171149), (2629, 31118), (5258, 15559)]