18939723

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4129}}^1$

素因数の和:4282

約数の個数: 16

約数和(自身を含む): 27753600

約数和(自身を除く): 8813877

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4129, 4587, 12387, 45419, 136257, 573931, 1721793, 6313241, 18939723]

約数ペア:

[(1, 18939723), (3, 6313241), (11, 1721793), (33, 573931), (139, 136257), (417, 45419), (1529, 12387), (4129, 4587)]