17888931651

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{28657}}^1$

素因数の和:28875

約数の個数: 32

約数和(自身を含む): 25420792320

約数和(自身を除く): 7531860669

約数列:

[1, 3, 23, 69, 83, 109, 249, 327, 1909, 2507, 5727, 7521, 9047, 27141, 28657, 85971, 208081, 624243, 659111, 1977333, 2378531, 3123613, 7135593, 9370839, 54706213, 71843099, 164118639, 215529297, 259259879, 777779637, 5962977217, 17888931651]

約数ペア:

[(1, 17888931651), (3, 5962977217), (23, 777779637), (69, 259259879), (83, 215529297), (109, 164118639), (249, 71843099), (327, 54706213), (1909, 9370839), (2507, 7135593), (5727, 3123613), (7521, 2378531), (9047, 1977333), (27141, 659111), (28657, 624243), (85971, 208081)]