20512497906

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{538301}}^1$

素因数の和:538411

約数の個数: 48

約数和(自身を含む): 46606187160

約数和(自身を除く): 26093689254

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 73, 87, 146, 174, 219, 261, 438, 522, 657, 1314, 2117, 4234, 6351, 12702, 19053, 38106, 538301, 1076602, 1614903, 3229806, 4844709, 9689418, 15610729, 31221458, 39295973, 46832187, 78591946, 93664374, 117887919, 140496561, 235775838, 280993122, 353663757, 707327514, 1139583217, 2279166434, 3418749651, 6837499302, 10256248953, 20512497906]

約数ペア:

[(1, 20512497906), (2, 10256248953), (3, 6837499302), (6, 3418749651), (9, 2279166434), (18, 1139583217), (29, 707327514), (58, 353663757), (73, 280993122), (87, 235775838), (146, 140496561), (174, 117887919), (219, 93664374), (261, 78591946), (438, 46832187), (522, 39295973), (657, 31221458), (1314, 15610729), (2117, 9689418), (4234, 4844709), (6351, 3229806), (12702, 1614903), (19053, 1076602), (38106, 538301)]