208020069

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{23561}}^1$

素因数の和:23682

約数の個数: 20

約数和(自身を含む): 313610220

約数和(自身を除く): 105590151

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2943, 8829, 23561, 70683, 212049, 636147, 1908441, 2568149, 7704447, 23113341, 69340023, 208020069]

約数ペア:

[(1, 208020069), (3, 69340023), (9, 23113341), (27, 7704447), (81, 2568149), (109, 1908441), (327, 636147), (981, 212049), (2943, 70683), (8829, 23561)]