28200717

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{6569}}^1$

素因数の和:6634

約数の個数: 20

約数和(自身を含む): 42928380

約数和(自身を除く): 14727663

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 6569, 19707, 59121, 177363, 348157, 532089, 1044471, 3133413, 9400239, 28200717]

約数ペア:

[(1, 28200717), (3, 9400239), (9, 3133413), (27, 1044471), (53, 532089), (81, 348157), (159, 177363), (477, 59121), (1431, 19707), (4293, 6569)]