19903862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{904721}}^1$

素因数の和:904734

約数の個数: 8

約数和(自身を含む): 32569992

約数和(自身を除く): 12666130

約数列:

[1, 2, 11, 22, 904721, 1809442, 9951931, 19903862]

約数ペア:

[(1, 19903862), (2, 9951931), (11, 1809442), (22, 904721)]