81013689

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{5077}}^1$

素因数の和:5286

約数の個数: 20

約数和(自身を含む): 121658724

約数和(自身を除く): 40645035

約数列:

[1, 3, 9, 27, 81, 197, 591, 1773, 5077, 5319, 15231, 15957, 45693, 137079, 411237, 1000169, 3000507, 9001521, 27004563, 81013689]

約数ペア:

[(1, 81013689), (3, 27004563), (9, 9001521), (27, 3000507), (81, 1000169), (197, 411237), (591, 137079), (1773, 45693), (5077, 15957), (5319, 15231)]