81169857

素因数分解:

$3^4\times {\mathrm{673}}^1\times {\mathrm{1489}}^1$

素因数の和:2174

約数の個数: 20

約数和(自身を含む): 121515460

約数和(自身を除く): 40345603

約数列:

[1, 3, 9, 27, 81, 673, 1489, 2019, 4467, 6057, 13401, 18171, 40203, 54513, 120609, 1002097, 3006291, 9018873, 27056619, 81169857]

約数ペア:

[(1, 81169857), (3, 27056619), (9, 9018873), (27, 3006291), (81, 1002097), (673, 120609), (1489, 54513), (2019, 40203), (4467, 18171), (6057, 13401)]