19018748

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21911}}^1$

素因数の和:21953

約数の個数: 24

約数和(自身を含む): 39266304

約数和(自身を除く): 20247556

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21911, 43822, 87644, 153377, 306754, 613508, 679241, 1358482, 2716964, 4754687, 9509374, 19018748]

約数ペア:

[(1, 19018748), (2, 9509374), (4, 4754687), (7, 2716964), (14, 1358482), (28, 679241), (31, 613508), (62, 306754), (124, 153377), (217, 87644), (434, 43822), (868, 21911)]