208953

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 16

約数和(自身を含む): 316800

約数和(自身を除く): 107847

約数列:

[1, 3, 9, 27, 71, 109, 213, 327, 639, 981, 1917, 2943, 7739, 23217, 69651, 208953]

約数ペア:

[(1, 208953), (3, 69651), (9, 23217), (27, 7739), (71, 2943), (109, 1917), (213, 981), (327, 639)]