21660016

素因数分解:

$2^4\times 7^1\times {\mathrm{193393}}^1$

素因数の和:193408

約数の個数: 20

約数和(自身を含む): 47961712

約数和(自身を除く): 26301696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193393, 386786, 773572, 1353751, 1547144, 2707502, 3094288, 5415004, 10830008, 21660016]

約数ペア:

[(1, 21660016), (2, 10830008), (4, 5415004), (7, 3094288), (8, 2707502), (14, 1547144), (16, 1353751), (28, 773572), (56, 386786), (112, 193393)]