20734567

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 5807513

約数列:

[1, 7, 19, 31, 47, 107, 133, 217, 329, 589, 749, 893, 1457, 2033, 3317, 4123, 5029, 6251, 10199, 14231, 23219, 27683, 35203, 63023, 95551, 155899, 193781, 441161, 668857, 1091293, 2962081, 20734567]

約数ペア:

[(1, 20734567), (7, 2962081), (19, 1091293), (31, 668857), (47, 441161), (107, 193781), (133, 155899), (217, 95551), (329, 63023), (589, 35203), (749, 27683), (893, 23219), (1457, 14231), (2033, 10199), (3317, 6251), (4123, 5029)]