18437919

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{809}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 25194240

約数和(自身を除く): 6756321

約数列:

[1, 3, 71, 107, 213, 321, 809, 2427, 7597, 22791, 57439, 86563, 172317, 259689, 6145973, 18437919]

約数ペア:

[(1, 18437919), (3, 6145973), (71, 259689), (107, 172317), (213, 86563), (321, 57439), (809, 22791), (2427, 7597)]