42131271

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 73407488

約数和(自身を除く): 31276217

約数列:

[1, 3, 7, 13, 21, 37, 39, 43, 91, 97, 111, 129, 259, 273, 291, 301, 481, 559, 679, 777, 903, 1261, 1443, 1591, 1677, 2037, 3367, 3589, 3783, 3913, 4171, 4773, 8827, 10101, 10767, 11137, 11739, 12513, 20683, 25123, 26481, 29197, 33411, 46657, 54223, 62049, 75369, 87591, 139971, 144781, 154327, 162669, 326599, 379561, 434343, 462981, 979797, 1080289, 1138683, 2006251, 3240867, 6018753, 14043757, 42131271]

約数ペア:

[(1, 42131271), (3, 14043757), (7, 6018753), (13, 3240867), (21, 2006251), (37, 1138683), (39, 1080289), (43, 979797), (91, 462981), (97, 434343), (111, 379561), (129, 326599), (259, 162669), (273, 154327), (291, 144781), (301, 139971), (481, 87591), (559, 75369), (679, 62049), (777, 54223), (903, 46657), (1261, 33411), (1443, 29197), (1591, 26481), (1677, 25123), (2037, 20683), (3367, 12513), (3589, 11739), (3783, 11137), (3913, 10767), (4171, 10101), (4773, 8827)]