16982721

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6269}}^1$

素因数の和:6325

約数の個数: 24

約数和(自身を含む): 28691520

約数和(自身を除く): 11708799

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 6269, 18807, 43883, 56421, 131649, 269567, 394947, 808701, 1886969, 2426103, 5660907, 16982721]

約数ペア:

[(1, 16982721), (3, 5660907), (7, 2426103), (9, 1886969), (21, 808701), (43, 394947), (63, 269567), (129, 131649), (301, 56421), (387, 43883), (903, 18807), (2709, 6269)]