199920908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{4543657}}^1$

素因数の和:4543672

約数の個数: 12

約数和(自身を含む): 381667272

約数和(自身を除く): 181746364

約数列:

[1, 2, 4, 11, 22, 44, 4543657, 9087314, 18174628, 49980227, 99960454, 199920908]

約数ペア:

[(1, 199920908), (2, 99960454), (4, 49980227), (11, 18174628), (22, 9087314), (44, 4543657)]