20368535

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 27176688

約数和(自身を除く): 6808153

約数列:

[1, 5, 11, 55, 121, 131, 257, 605, 655, 1285, 1441, 2827, 7205, 14135, 15851, 31097, 33667, 79255, 155485, 168335, 370337, 1851685, 4073707, 20368535]

約数ペア:

[(1, 20368535), (5, 4073707), (11, 1851685), (55, 370337), (121, 168335), (131, 155485), (257, 79255), (605, 33667), (655, 31097), (1285, 15851), (1441, 14135), (2827, 7205)]