20512991547

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{510007}}^1$

素因数の和:510163

約数の個数: 24

約数和(自身を含む): 30631080480

約数和(自身を除く): 10118088933

約数列:

[1, 3, 9, 41, 109, 123, 327, 369, 981, 4469, 13407, 40221, 510007, 1530021, 4590063, 20910287, 55590763, 62730861, 166772289, 188192583, 500316867, 2279221283, 6837663849, 20512991547]

約数ペア:

[(1, 20512991547), (3, 6837663849), (9, 2279221283), (41, 500316867), (109, 188192583), (123, 166772289), (327, 62730861), (369, 55590763), (981, 20910287), (4469, 4590063), (13407, 1530021), (40221, 510007)]