209902990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1908209}}^1$

素因数の和:1908227

約数の個数: 16

約数和(自身を含む): 412173360

約数和(自身を除く): 202270370

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1908209, 3816418, 9541045, 19082090, 20990299, 41980598, 104951495, 209902990]

約数ペア:

[(1, 209902990), (2, 104951495), (5, 41980598), (10, 20990299), (11, 19082090), (22, 9541045), (55, 3816418), (110, 1908209)]