491025807

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{356591}}^1$

素因数の和:356620

約数の個数: 20

約数和(自身を含む): 776657376

約数和(自身を除く): 285631569

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 356591, 1069773, 3209319, 6062047, 9627957, 18186141, 28883871, 54558423, 163675269, 491025807]

約数ペア:

[(1, 491025807), (3, 163675269), (9, 54558423), (17, 28883871), (27, 18186141), (51, 9627957), (81, 6062047), (153, 3209319), (459, 1069773), (1377, 356591)]