21606081

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 34265088

約数和(自身を除く): 12659007

約数列:

[1, 3, 7, 21, 43, 71, 129, 213, 301, 337, 497, 903, 1011, 1491, 2359, 3053, 7077, 9159, 14491, 21371, 23927, 43473, 64113, 71781, 101437, 167489, 304311, 502467, 1028861, 3086583, 7202027, 21606081]

約数ペア:

[(1, 21606081), (3, 7202027), (7, 3086583), (21, 1028861), (43, 502467), (71, 304311), (129, 167489), (213, 101437), (301, 71781), (337, 64113), (497, 43473), (903, 23927), (1011, 21371), (1491, 14491), (2359, 9159), (3053, 7077)]