21842073

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:706

約数の個数: 36

約数和(自身を含む): 35852544

約数和(自身を除く): 14010471

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 121, 279, 341, 363, 647, 1023, 1089, 1941, 3069, 3751, 5823, 7117, 11253, 20057, 21351, 33759, 60171, 64053, 78287, 180513, 220627, 234861, 661881, 704583, 1985643, 2426897, 7280691, 21842073]

約数ペア:

[(1, 21842073), (3, 7280691), (9, 2426897), (11, 1985643), (31, 704583), (33, 661881), (93, 234861), (99, 220627), (121, 180513), (279, 78287), (341, 64053), (363, 60171), (647, 33759), (1023, 21351), (1089, 20057), (1941, 11253), (3069, 7117), (3751, 5823)]