20017724

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 35922768

約数和(自身を除く): 15905044

約数列:

[1, 2, 4, 67, 113, 134, 226, 268, 452, 661, 1322, 2644, 7571, 15142, 30284, 44287, 74693, 88574, 149386, 177148, 298772, 5004431, 10008862, 20017724]

約数ペア:

[(1, 20017724), (2, 10008862), (4, 5004431), (67, 298772), (113, 177148), (134, 149386), (226, 88574), (268, 74693), (452, 44287), (661, 30284), (1322, 15142), (2644, 7571)]