81123724

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{167611}}^1$

素因数の和:167637

約数の個数: 18

約数和(自身を含む): 156046772

約数和(自身を除く): 74923048

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 167611, 335222, 670444, 1843721, 3687442, 7374884, 20280931, 40561862, 81123724]

約数ペア:

[(1, 81123724), (2, 40561862), (4, 20280931), (11, 7374884), (22, 3687442), (44, 1843721), (121, 670444), (242, 335222), (484, 167611)]