31720876

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{65539}}^1$

素因数の和:65565

約数の個数: 18

約数和(自身を含む): 61017740

約数和(自身を除く): 29296864

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 65539, 131078, 262156, 720929, 1441858, 2883716, 7930219, 15860438, 31720876]

約数ペア:

[(1, 31720876), (2, 15860438), (4, 7930219), (11, 2883716), (22, 1441858), (44, 720929), (121, 262156), (242, 131078), (484, 65539)]