20713887

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5441}}^1$

素因数の和:5500

約数の個数: 20

約数和(自身を含む): 31607136

約数和(自身を除く): 10893249

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5441, 16323, 48969, 146907, 255727, 440721, 767181, 2301543, 6904629, 20713887]

約数ペア:

[(1, 20713887), (3, 6904629), (9, 2301543), (27, 767181), (47, 440721), (81, 255727), (141, 146907), (423, 48969), (1269, 16323), (3807, 5441)]