28192527

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 46545408

約数和(自身を除く): 18352881

約数列:

[1, 3, 9, 11, 33, 47, 73, 83, 99, 141, 219, 249, 423, 517, 657, 747, 803, 913, 1551, 2409, 2739, 3431, 3901, 4653, 6059, 7227, 8217, 10293, 11703, 18177, 30879, 35109, 37741, 42911, 54531, 66649, 113223, 128733, 199947, 284773, 339669, 386199, 599841, 854319, 2562957, 3132503, 9397509, 28192527]

約数ペア:

[(1, 28192527), (3, 9397509), (9, 3132503), (11, 2562957), (33, 854319), (47, 599841), (73, 386199), (83, 339669), (99, 284773), (141, 199947), (219, 128733), (249, 113223), (423, 66649), (517, 54531), (657, 42911), (747, 37741), (803, 35109), (913, 30879), (1551, 18177), (2409, 11703), (2739, 10293), (3431, 8217), (3901, 7227), (4653, 6059)]