28626453

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{20789}}^1$

素因数の和:20818

約数の個数: 20

約数和(自身を含む): 45280620

約数和(自身を除く): 16654167

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 20789, 62367, 187101, 353413, 561303, 1060239, 1683909, 3180717, 9542151, 28626453]

約数ペア:

[(1, 28626453), (3, 9542151), (9, 3180717), (17, 1683909), (27, 1060239), (51, 561303), (81, 353413), (153, 187101), (459, 62367), (1377, 20789)]