21869562

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 30385158

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 71, 78, 142, 143, 213, 286, 359, 426, 429, 718, 781, 858, 923, 1077, 1562, 1846, 2154, 2343, 2769, 3949, 4667, 4686, 5538, 7898, 9334, 10153, 11847, 14001, 20306, 23694, 25489, 28002, 30459, 50978, 51337, 60918, 76467, 102674, 152934, 154011, 280379, 308022, 331357, 560758, 662714, 841137, 994071, 1682274, 1988142, 3644927, 7289854, 10934781, 21869562]

約数ペア:

[(1, 21869562), (2, 10934781), (3, 7289854), (6, 3644927), (11, 1988142), (13, 1682274), (22, 994071), (26, 841137), (33, 662714), (39, 560758), (66, 331357), (71, 308022), (78, 280379), (142, 154011), (143, 152934), (213, 102674), (286, 76467), (359, 60918), (426, 51337), (429, 50978), (718, 30459), (781, 28002), (858, 25489), (923, 23694), (1077, 20306), (1562, 14001), (1846, 11847), (2154, 10153), (2343, 9334), (2769, 7898), (3949, 5538), (4667, 4686)]