19955396

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1889}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 37044000

約数和(自身を除く): 17088604

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 1889, 2641, 3778, 5282, 7556, 10564, 35891, 71782, 143564, 262571, 525142, 1050284, 4988849, 9977698, 19955396]

約数ペア:

[(1, 19955396), (2, 9977698), (4, 4988849), (19, 1050284), (38, 525142), (76, 262571), (139, 143564), (278, 71782), (556, 35891), (1889, 10564), (2641, 7556), (3778, 5282)]