28520343

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{4457}}^1$

素因数の和:4548

約数の個数: 20

約数和(自身を含む): 43153440

約数和(自身を除く): 14633097

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 4457, 6399, 13371, 40113, 120339, 352103, 361017, 1056309, 3168927, 9506781, 28520343]

約数ペア:

[(1, 28520343), (3, 9506781), (9, 3168927), (27, 1056309), (79, 361017), (81, 352103), (237, 120339), (711, 40113), (2133, 13371), (4457, 6399)]