208609857

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{108821}}^1$

素因数の和:108901

約数の個数: 16

約数和(自身を含む): 313407360

約数和(自身を除く): 104797503

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 108821, 326463, 979389, 2938167, 7726291, 23178873, 69536619, 208609857]

約数ペア:

[(1, 208609857), (3, 69536619), (9, 23178873), (27, 7726291), (71, 2938167), (213, 979389), (639, 326463), (1917, 108821)]