81261549

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{24469}}^1$

素因数の和:24522

約数の個数: 20

約数和(自身を含む): 124356540

約数和(自身を除く): 43094991

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 24469, 73407, 220221, 660663, 1003229, 1981989, 3009687, 9029061, 27087183, 81261549]

約数ペア:

[(1, 81261549), (3, 27087183), (9, 9029061), (27, 3009687), (41, 1981989), (81, 1003229), (123, 660663), (369, 220221), (1107, 73407), (3321, 24469)]