81195453

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{16433}}^1$

素因数の和:16506

約数の個数: 20

約数和(自身を含む): 123287868

約数和(自身を除く): 42092415

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 16433, 49299, 147897, 443691, 1002413, 1331073, 3007239, 9021717, 27065151, 81195453]

約数ペア:

[(1, 81195453), (3, 27065151), (9, 9021717), (27, 3007239), (61, 1331073), (81, 1002413), (183, 443691), (549, 147897), (1647, 49299), (4941, 16433)]