21165777

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{709}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 31898880

約数和(自身を除く): 10733103

約数列:

[1, 3, 9, 31, 93, 107, 279, 321, 709, 963, 2127, 3317, 6381, 9951, 21979, 29853, 65937, 75863, 197811, 227589, 682767, 2351753, 7055259, 21165777]

約数ペア:

[(1, 21165777), (3, 7055259), (9, 2351753), (31, 682767), (93, 227589), (107, 197811), (279, 75863), (321, 65937), (709, 29853), (963, 21979), (2127, 9951), (3317, 6381)]