21099617

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 27451200

約数和(自身を除く): 6351583

約数列:

[1, 7, 11, 29, 77, 121, 203, 319, 847, 859, 2233, 3509, 6013, 9449, 24563, 24911, 66143, 103939, 174377, 274021, 727573, 1918147, 3014231, 21099617]

約数ペア:

[(1, 21099617), (7, 3014231), (11, 1918147), (29, 727573), (77, 274021), (121, 174377), (203, 103939), (319, 66143), (847, 24911), (859, 24563), (2233, 9449), (3509, 6013)]