19997289657

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{287107}}^1$

素因数の和:287293

約数の個数: 24

約数和(自身を含む): 29560639680

約数和(自身を除く): 9563350023

約数列:

[1, 3, 9, 71, 109, 213, 327, 639, 981, 7739, 23217, 69651, 287107, 861321, 2583963, 20384597, 31294663, 61153791, 93883989, 183461373, 281651967, 2221921073, 6665763219, 19997289657]

約数ペア:

[(1, 19997289657), (3, 6665763219), (9, 2221921073), (71, 281651967), (109, 183461373), (213, 93883989), (327, 61153791), (639, 31294663), (981, 20384597), (7739, 2583963), (23217, 861321), (69651, 287107)]