19947657

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:932

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7423863

約数列:

[1, 3, 43, 129, 239, 647, 717, 1941, 10277, 27821, 30831, 83463, 154633, 463899, 6649219, 19947657]

約数ペア:

[(1, 19947657), (3, 6649219), (43, 463899), (129, 154633), (239, 83463), (647, 30831), (717, 27821), (1941, 10277)]