27990279

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20327}}^1$

素因数の和:20356

約数の個数: 20

約数和(自身を含む): 44274384

約数和(自身を除く): 16284105

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20327, 60981, 182943, 345559, 548829, 1036677, 1646487, 3110031, 9330093, 27990279]

約数ペア:

[(1, 27990279), (3, 9330093), (9, 3110031), (17, 1646487), (27, 1036677), (51, 548829), (81, 345559), (153, 182943), (459, 60981), (1377, 20327)]