18969391

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{739}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 22969600

約数和(自身を除く): 4000209

約数列:

[1, 7, 19, 133, 193, 739, 1351, 3667, 5173, 14041, 25669, 98287, 142627, 998389, 2709913, 18969391]

約数ペア:

[(1, 18969391), (7, 2709913), (19, 998389), (133, 142627), (193, 98287), (739, 25669), (1351, 14041), (3667, 5173)]