81741981

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{5431}}^1$

素因数の和:5636

約数の個数: 16

約数和(自身を含む): 113420160

約数和(自身を除く): 31678179

約数列:

[1, 3, 29, 87, 173, 519, 5017, 5431, 15051, 16293, 157499, 472497, 939563, 2818689, 27247327, 81741981]

約数ペア:

[(1, 81741981), (3, 27247327), (29, 2818689), (87, 939563), (173, 472497), (519, 157499), (5017, 16293), (5431, 15051)]