28439667

素因数分解:

$3^4\times {\mathrm{479}}^1\times {\mathrm{733}}^1$

素因数の和:1224

約数の個数: 20

約数和(自身を含む): 42630720

約数和(自身を除く): 14191053

約数列:

[1, 3, 9, 27, 81, 479, 733, 1437, 2199, 4311, 6597, 12933, 19791, 38799, 59373, 351107, 1053321, 3159963, 9479889, 28439667]

約数ペア:

[(1, 28439667), (3, 9479889), (9, 3159963), (27, 1053321), (81, 351107), (479, 59373), (733, 38799), (1437, 19791), (2199, 12933), (4311, 6597)]