19593657

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3407}}^1$

素因数の和:3490

約数の個数: 20

約数和(自身を含む): 29690496

約数和(自身を除く): 10096839

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3407, 5751, 10221, 30663, 91989, 241897, 275967, 725691, 2177073, 6531219, 19593657]

約数ペア:

[(1, 19593657), (3, 6531219), (9, 2177073), (27, 725691), (71, 275967), (81, 241897), (213, 91989), (639, 30663), (1917, 10221), (3407, 5751)]