21120001

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9341}}^1$

素因数の和:9384

約数の個数: 16

約数和(自身を含む): 26904960

約数和(自身を除く): 5784959

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9341, 65387, 158797, 177479, 1111579, 1242353, 3017143, 21120001]

約数ペア:

[(1, 21120001), (7, 3017143), (17, 1242353), (19, 1111579), (119, 177479), (133, 158797), (323, 65387), (2261, 9341)]