727280001

素因数分解:

$3^2\times 7^2\times {\mathrm{1649161}}^1$

素因数の和:1649181

約数の個数: 18

約数和(自身を含む): 1222029042

約数和(自身を除く): 494749041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 1649161, 4947483, 11544127, 14842449, 34632381, 80808889, 103897143, 242426667, 727280001]

約数ペア:

[(1, 727280001), (3, 242426667), (7, 103897143), (9, 80808889), (21, 34632381), (49, 14842449), (63, 11544127), (147, 4947483), (441, 1649161)]