81272781

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{29803}}^1$

素因数の和:29913

約数の個数: 16

約数和(自身を含む): 121600320

約数和(自身を除く): 40327539

約数列:

[1, 3, 9, 27, 101, 303, 909, 2727, 29803, 89409, 268227, 804681, 3010103, 9030309, 27090927, 81272781]

約数ペア:

[(1, 81272781), (3, 27090927), (9, 9030309), (27, 3010103), (101, 804681), (303, 268227), (909, 89409), (2727, 29803)]