208507989

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{30497}}^1$

素因数の和:30596

約数の個数: 16

約数和(自身を含む): 289852992

約数和(自身を除く): 81345003

約数列:

[1, 3, 43, 53, 129, 159, 2279, 6837, 30497, 91491, 1311371, 1616341, 3934113, 4849023, 69502663, 208507989]

約数ペア:

[(1, 208507989), (3, 69502663), (43, 4849023), (53, 3934113), (129, 1616341), (159, 1311371), (2279, 91491), (6837, 30497)]