20512157877

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5388011}}^1$

素因数の和:5388070

約数の個数: 20

約数和(自身を含む): 31293573696

約数和(自身を除く): 10781415819

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5388011, 16164033, 48492099, 145476297, 253236517, 436428891, 759709551, 2279128653, 6837385959, 20512157877]

約数ペア:

[(1, 20512157877), (3, 6837385959), (9, 2279128653), (27, 759709551), (47, 436428891), (81, 253236517), (141, 145476297), (423, 48492099), (1269, 16164033), (3807, 5388011)]