21084987

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{941}}^1$

素因数の和:1059

約数の個数: 32

約数和(自身を含む): 35449344

約数和(自身を除く): 14364357

約数列:

[1, 3, 7, 11, 21, 33, 77, 97, 231, 291, 679, 941, 1067, 2037, 2823, 3201, 6587, 7469, 10351, 19761, 22407, 31053, 72457, 91277, 217371, 273831, 638939, 1004047, 1916817, 3012141, 7028329, 21084987]

約数ペア:

[(1, 21084987), (3, 7028329), (7, 3012141), (11, 1916817), (21, 1004047), (33, 638939), (77, 273831), (97, 217371), (231, 91277), (291, 72457), (679, 31053), (941, 22407), (1067, 19761), (2037, 10351), (2823, 7469), (3201, 6587)]