80497557

素因数分解:

$3^4\times 7^1\times {\mathrm{141971}}^1$

素因数の和:141990

約数の個数: 20

約数和(自身を含む): 137428896

約数和(自身を除く): 56931339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 141971, 425913, 993797, 1277739, 2981391, 3833217, 8944173, 11499651, 26832519, 80497557]

約数ペア:

[(1, 80497557), (3, 26832519), (7, 11499651), (9, 8944173), (21, 3833217), (27, 2981391), (63, 1277739), (81, 993797), (189, 425913), (567, 141971)]