1728778869

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{107251}}^1$

素因数の和:107462

約数の個数: 20

約数和(自身を含む): 2595498400

約数和(自身を除く): 866719531

約数列:

[1, 3, 9, 27, 81, 199, 597, 1791, 5373, 16119, 107251, 321753, 965259, 2895777, 8687331, 21342949, 64028847, 192086541, 576259623, 1728778869]

約数ペア:

[(1, 1728778869), (3, 576259623), (9, 192086541), (27, 64028847), (81, 21342949), (199, 8687331), (597, 2895777), (1791, 965259), (5373, 321753), (16119, 107251)]