21171073

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 28800000

約数和(自身を除く): 7628927

約数列:

[1, 7, 11, 19, 29, 77, 133, 203, 209, 319, 499, 551, 1463, 2233, 3493, 3857, 5489, 6061, 9481, 14471, 38423, 42427, 66367, 101297, 104291, 159181, 274949, 730037, 1114267, 1924643, 3024439, 21171073]

約数ペア:

[(1, 21171073), (7, 3024439), (11, 1924643), (19, 1114267), (29, 730037), (77, 274949), (133, 159181), (203, 104291), (209, 101297), (319, 66367), (499, 42427), (551, 38423), (1463, 14471), (2233, 9481), (3493, 6061), (3857, 5489)]