21992006

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 24

約数和(自身を含む): 35664120

約数和(自身を除く): 13672114

約数列:

[1, 2, 19, 38, 43, 86, 313, 626, 817, 1634, 1849, 3698, 5947, 11894, 13459, 26918, 35131, 70262, 255721, 511442, 578737, 1157474, 10996003, 21992006]

約数ペア:

[(1, 21992006), (2, 10996003), (19, 1157474), (38, 578737), (43, 511442), (86, 255721), (313, 70262), (626, 35131), (817, 26918), (1634, 13459), (1849, 11894), (3698, 5947)]