16248519

素因数分解:

$3^4\times 7^1\times {\mathrm{28657}}^1$

素因数の和:28676

約数の個数: 20

約数和(自身を含む): 27740944

約数和(自身を除く): 11492425

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 28657, 85971, 200599, 257913, 601797, 773739, 1805391, 2321217, 5416173, 16248519]

約数ペア:

[(1, 16248519), (3, 5416173), (7, 2321217), (9, 1805391), (21, 773739), (27, 601797), (63, 257913), (81, 200599), (189, 85971), (567, 28657)]