21054198

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4493}}^1$

素因数の和:4580

約数の個数: 32

約数和(自身を含む): 46593792

約数和(自身を除く): 25539594

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 71, 142, 213, 426, 781, 1562, 2343, 4493, 4686, 8986, 13479, 26958, 49423, 98846, 148269, 296538, 319003, 638006, 957009, 1914018, 3509033, 7018066, 10527099, 21054198]

約数ペア:

[(1, 21054198), (2, 10527099), (3, 7018066), (6, 3509033), (11, 1914018), (22, 957009), (33, 638006), (66, 319003), (71, 296538), (142, 148269), (213, 98846), (426, 49423), (781, 26958), (1562, 13479), (2343, 8986), (4493, 4686)]