18675813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1987}}^1$

素因数の和:2244

約数の個数: 16

約数和(自身を含む): 26941376

約数和(自身を除く): 8265563

約数列:

[1, 3, 13, 39, 241, 723, 1987, 3133, 5961, 9399, 25831, 77493, 478867, 1436601, 6225271, 18675813]

約数ペア:

[(1, 18675813), (3, 6225271), (13, 1436601), (39, 478867), (241, 77493), (723, 25831), (1987, 9399), (3133, 5961)]