18827740

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1721}}^1$

素因数の和:2277

約数の個数: 24

約数和(自身を含む): 39633552

約数和(自身を除く): 20805812

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 1721, 2188, 2735, 3442, 5470, 6884, 8605, 10940, 17210, 34420, 941387, 1882774, 3765548, 4706935, 9413870, 18827740]

約数ペア:

[(1, 18827740), (2, 9413870), (4, 4706935), (5, 3765548), (10, 1882774), (20, 941387), (547, 34420), (1094, 17210), (1721, 10940), (2188, 8605), (2735, 6884), (3442, 5470)]