20891863521

素因数分解:

$3^6\times {\mathrm{28658249}}^1$

素因数の和:28658267

約数の個数: 14

約数和(自身を含む): 31323467250

約数和(自身を除く): 10431603729

約数列:

[1, 3, 9, 27, 81, 243, 729, 28658249, 85974747, 257924241, 773772723, 2321318169, 6963954507, 20891863521]

約数ペア:

[(1, 20891863521), (3, 6963954507), (9, 2321318169), (27, 773772723), (81, 257924241), (243, 85974747), (729, 28658249)]