19540774

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{80747}}^1$

素因数の和:80771

約数の個数: 12

約数和(自身を含む): 32218452

約数和(自身を除く): 12677678

約数列:

[1, 2, 11, 22, 121, 242, 80747, 161494, 888217, 1776434, 9770387, 19540774]

約数ペア:

[(1, 19540774), (2, 9770387), (11, 1776434), (22, 888217), (121, 161494), (242, 80747)]