21252021

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{10433}}^1$

素因数の和:10540

約数の個数: 16

約数和(自身を含む): 32721024

約数和(自身を除く): 11469003

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 10433, 31299, 73031, 219093, 1012001, 3036003, 7084007, 21252021]

約数ペア:

[(1, 21252021), (3, 7084007), (7, 3036003), (21, 1012001), (97, 219093), (291, 73031), (679, 31299), (2037, 10433)]