28480881

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 44972928

約数和(自身を除く): 16492047

約数列:

[1, 3, 11, 13, 33, 39, 143, 197, 337, 429, 591, 1011, 2167, 2561, 3707, 4381, 6501, 7683, 11121, 13143, 28171, 48191, 66389, 84513, 144573, 199167, 730279, 863057, 2190837, 2589171, 9493627, 28480881]

約数ペア:

[(1, 28480881), (3, 9493627), (11, 2589171), (13, 2190837), (33, 863057), (39, 730279), (143, 199167), (197, 144573), (337, 84513), (429, 66389), (591, 48191), (1011, 28171), (2167, 13143), (2561, 11121), (3707, 7683), (4381, 6501)]