19896543

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10585377

約数列:

[1, 3, 9, 27, 71, 97, 107, 213, 291, 321, 639, 873, 963, 1917, 2619, 2889, 6887, 7597, 10379, 20661, 22791, 31137, 61983, 68373, 93411, 185949, 205119, 280233, 736909, 2210727, 6632181, 19896543]

約数ペア:

[(1, 19896543), (3, 6632181), (9, 2210727), (27, 736909), (71, 280233), (97, 205119), (107, 185949), (213, 93411), (291, 68373), (321, 61983), (639, 31137), (873, 22791), (963, 20661), (1917, 10379), (2619, 7597), (2889, 6887)]