9898889

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 14300160

約数和(自身を除く): 4401271

約数列:

[1, 7, 11, 13, 29, 31, 77, 91, 121, 143, 203, 217, 319, 341, 377, 403, 847, 899, 1001, 1573, 2233, 2387, 2639, 2821, 3509, 3751, 4147, 4433, 6293, 9889, 11011, 11687, 24563, 26257, 29029, 31031, 45617, 48763, 69223, 81809, 108779, 128557, 319319, 341341, 761453, 899899, 1414127, 9898889]

約数ペア:

[(1, 9898889), (7, 1414127), (11, 899899), (13, 761453), (29, 341341), (31, 319319), (77, 128557), (91, 108779), (121, 81809), (143, 69223), (203, 48763), (217, 45617), (319, 31031), (341, 29029), (377, 26257), (403, 24563), (847, 11687), (899, 11011), (1001, 9889), (1573, 6293), (2233, 4433), (2387, 4147), (2639, 3751), (2821, 3509)]