18722864

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{40351}}^1$

素因数の和:40388

約数の個数: 20

約数和(自身を含む): 37527360

約数和(自身を除く): 18804496

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 40351, 80702, 161404, 322808, 645616, 1170179, 2340358, 4680716, 9361432, 18722864]

約数ペア:

[(1, 18722864), (2, 9361432), (4, 4680716), (8, 2340358), (16, 1170179), (29, 645616), (58, 322808), (116, 161404), (232, 80702), (464, 40351)]