19166818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4129}}^1$

素因数の和:4353

約数の個数: 16

約数和(自身を含む): 31520160

約数和(自身を除く): 12353342

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4129, 4642, 8258, 45419, 90838, 871219, 1742438, 9583409, 19166818]

約数ペア:

[(1, 19166818), (2, 9583409), (11, 1742438), (22, 871219), (211, 90838), (422, 45419), (2321, 8258), (4129, 4642)]