19940291

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{479}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 24115200

約数和(自身を除く): 4174909

約数列:

[1, 7, 19, 133, 313, 479, 2191, 3353, 5947, 9101, 41629, 63707, 149927, 1049489, 2848613, 19940291]

約数ペア:

[(1, 19940291), (7, 2848613), (19, 1049489), (133, 149927), (313, 63707), (479, 41629), (2191, 9101), (3353, 5947)]