12221121

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 18117792

約数和(自身を除く): 5896671

約数列:

[1, 3, 11, 33, 121, 131, 257, 363, 393, 771, 1441, 2827, 4323, 8481, 15851, 31097, 33667, 47553, 93291, 101001, 370337, 1111011, 4073707, 12221121]

約数ペア:

[(1, 12221121), (3, 4073707), (11, 1111011), (33, 370337), (121, 101001), (131, 93291), (257, 47553), (363, 33667), (393, 31097), (771, 15851), (1441, 8481), (2827, 4323)]