21858949

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 27332640

約数和(自身を除く): 5473691

約数列:

[1, 7, 19, 49, 53, 133, 371, 443, 931, 1007, 2597, 3101, 7049, 8417, 21707, 23479, 49343, 58919, 164353, 412433, 446101, 1150471, 3122707, 21858949]

約数ペア:

[(1, 21858949), (7, 3122707), (19, 1150471), (49, 446101), (53, 412433), (133, 164353), (371, 58919), (443, 49343), (931, 23479), (1007, 21707), (2597, 8417), (3101, 7049)]