20409939

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{7109}}^1$

素因数の和:7155

約数の個数: 24

約数和(自身を含む): 33274800

約数和(自身を除く): 12864861

約数列:

[1, 3, 9, 11, 29, 33, 87, 99, 261, 319, 957, 2871, 7109, 21327, 63981, 78199, 206161, 234597, 618483, 703791, 1855449, 2267771, 6803313, 20409939]

約数ペア:

[(1, 20409939), (3, 6803313), (9, 2267771), (11, 1855449), (29, 703791), (33, 618483), (87, 234597), (99, 206161), (261, 78199), (319, 63981), (957, 21327), (2871, 7109)]