281918961

素因数分解:

$3^4\times {\mathrm{709}}^1\times {\mathrm{4909}}^1$

素因数の和:5630

約数の個数: 20

約数和(自身を含む): 421818100

約数和(自身を除く): 139899139

約数列:

[1, 3, 9, 27, 81, 709, 2127, 4909, 6381, 14727, 19143, 44181, 57429, 132543, 397629, 3480481, 10441443, 31324329, 93972987, 281918961]

約数ペア:

[(1, 281918961), (3, 93972987), (9, 31324329), (27, 10441443), (81, 3480481), (709, 397629), (2127, 132543), (4909, 57429), (6381, 44181), (14727, 19143)]