18909616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{107441}}^1$

素因数の和:107460

約数の個数: 20

約数和(自身を含む): 39968424

約数和(自身を除く): 21058808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 107441, 214882, 429764, 859528, 1181851, 1719056, 2363702, 4727404, 9454808, 18909616]

約数ペア:

[(1, 18909616), (2, 9454808), (4, 4727404), (8, 2363702), (11, 1719056), (16, 1181851), (22, 859528), (44, 429764), (88, 214882), (176, 107441)]