28283211

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2621}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 44993520

約数和(自身を除く): 16710309

約数列:

[1, 3, 9, 11, 33, 99, 109, 327, 981, 1199, 2621, 3597, 7863, 10791, 23589, 28831, 86493, 259479, 285689, 857067, 2571201, 3142579, 9427737, 28283211]

約数ペア:

[(1, 28283211), (3, 9427737), (9, 3142579), (11, 2571201), (33, 857067), (99, 285689), (109, 259479), (327, 86493), (981, 28831), (1199, 23589), (2621, 10791), (3597, 7863)]