21304514

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19763}}^1$

素因数の和:19790

約数の個数: 24

約数和(自身を含む): 40555728

約数和(自身を除く): 19251214

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19763, 39526, 138341, 217393, 276682, 434786, 968387, 1521751, 1936774, 3043502, 10652257, 21304514]

約数ペア:

[(1, 21304514), (2, 10652257), (7, 3043502), (11, 1936774), (14, 1521751), (22, 968387), (49, 434786), (77, 276682), (98, 217393), (154, 138341), (539, 39526), (1078, 19763)]