726000003

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{208441}}^1$

素因数の和:208496

約数の個数: 20

約数和(自身を含む): 1109745208

約数和(自身を除く): 383745205

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 208441, 625323, 1875969, 5627907, 8962963, 16883721, 26888889, 80666667, 242000001, 726000003]

約数ペア:

[(1, 726000003), (3, 242000001), (9, 80666667), (27, 26888889), (43, 16883721), (81, 8962963), (129, 5627907), (387, 1875969), (1161, 625323), (3483, 208441)]