28560777

素因数分解:

$3^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{2003}}^1$

素因数の和:2117

約数の個数: 24

約数和(自身を含む): 44777376

約数和(自身を除く): 16216599

約数列:

[1, 3, 7, 21, 49, 97, 147, 291, 679, 2003, 2037, 4753, 6009, 14021, 14259, 42063, 98147, 194291, 294441, 582873, 1360037, 4080111, 9520259, 28560777]

約数ペア:

[(1, 28560777), (3, 9520259), (7, 4080111), (21, 1360037), (49, 582873), (97, 294441), (147, 194291), (291, 98147), (679, 42063), (2003, 14259), (2037, 14021), (4753, 6009)]