28481607

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 52086528

約数和(自身を除く): 23604921

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 73, 77, 99, 219, 231, 511, 563, 657, 693, 803, 1533, 1689, 2409, 3941, 4599, 5067, 5621, 6193, 7227, 11823, 16863, 18579, 35469, 41099, 43351, 50589, 55737, 123297, 130053, 287693, 369891, 390159, 452089, 863079, 1356267, 2589237, 3164623, 4068801, 9493869, 28481607]

約数ペア:

[(1, 28481607), (3, 9493869), (7, 4068801), (9, 3164623), (11, 2589237), (21, 1356267), (33, 863079), (63, 452089), (73, 390159), (77, 369891), (99, 287693), (219, 130053), (231, 123297), (511, 55737), (563, 50589), (657, 43351), (693, 41099), (803, 35469), (1533, 18579), (1689, 16863), (2409, 11823), (3941, 7227), (4599, 6193), (5067, 5621)]