19954039

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2297}}^1$

素因数の和:2394

約数の個数: 16

約数和(自身を含む): 24487488

約数和(自身を除く): 4533449

約数列:

[1, 7, 17, 73, 119, 511, 1241, 2297, 8687, 16079, 39049, 167681, 273343, 1173767, 2850577, 19954039]

約数ペア:

[(1, 19954039), (7, 2850577), (17, 1173767), (73, 273343), (119, 167681), (511, 39049), (1241, 16079), (2297, 8687)]