31248217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 15200423

約数列:

[1, 7, 11, 13, 19, 31, 53, 77, 91, 133, 143, 209, 217, 247, 341, 371, 403, 583, 589, 689, 1001, 1007, 1463, 1643, 1729, 2387, 2717, 2821, 4081, 4123, 4433, 4823, 6479, 7049, 7579, 7657, 11077, 11501, 13091, 18073, 19019, 21359, 31031, 31217, 45353, 53053, 53599, 77539, 84227, 91637, 126511, 144001, 149513, 218519, 234949, 343387, 405821, 589589, 1008007, 1644643, 2403709, 2840747, 4464031, 31248217]

約数ペア:

[(1, 31248217), (7, 4464031), (11, 2840747), (13, 2403709), (19, 1644643), (31, 1008007), (53, 589589), (77, 405821), (91, 343387), (133, 234949), (143, 218519), (209, 149513), (217, 144001), (247, 126511), (341, 91637), (371, 84227), (403, 77539), (583, 53599), (589, 53053), (689, 45353), (1001, 31217), (1007, 31031), (1463, 21359), (1643, 19019), (1729, 18073), (2387, 13091), (2717, 11501), (2821, 11077), (4081, 7657), (4123, 7579), (4433, 7049), (4823, 6479)]