21783993

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{8573}}^1$

素因数の和:8605

約数の個数: 24

約数和(自身を含む): 36490944

約数和(自身を除く): 14706951

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 8573, 25719, 60011, 94303, 180033, 282909, 660121, 1037333, 1980363, 3111999, 7261331, 21783993]

約数ペア:

[(1, 21783993), (3, 7261331), (7, 3111999), (11, 1980363), (21, 1037333), (33, 660121), (77, 282909), (121, 180033), (231, 94303), (363, 60011), (847, 25719), (2541, 8573)]