20375421

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 30868992

約数和(自身を除く): 10493571

約数列:

[1, 3, 11, 33, 43, 83, 129, 173, 249, 473, 519, 913, 1419, 1903, 2739, 3569, 5709, 7439, 10707, 14359, 22317, 39259, 43077, 81829, 117777, 157949, 245487, 473847, 617437, 1852311, 6791807, 20375421]

約数ペア:

[(1, 20375421), (3, 6791807), (11, 1852311), (33, 617437), (43, 473847), (83, 245487), (129, 157949), (173, 117777), (249, 81829), (473, 43077), (519, 39259), (913, 22317), (1419, 14359), (1903, 10707), (2739, 7439), (3569, 5709)]