20512539

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 10218213

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 639, 683, 2049, 3337, 6147, 10011, 30033, 32101, 48493, 96303, 145479, 288909, 436437, 2279171, 6837513, 20512539]

約数ペア:

[(1, 20512539), (3, 6837513), (9, 2279171), (47, 436437), (71, 288909), (141, 145479), (213, 96303), (423, 48493), (639, 32101), (683, 30033), (2049, 10011), (3337, 6147)]