20664657

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{739}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 32323200

約数和(自身を除く): 11658543

約数列:

[1, 3, 9, 13, 39, 117, 239, 717, 739, 2151, 2217, 3107, 6651, 9321, 9607, 27963, 28821, 86463, 176621, 529863, 1589589, 2296073, 6888219, 20664657]

約数ペア:

[(1, 20664657), (3, 6888219), (9, 2296073), (13, 1589589), (39, 529863), (117, 176621), (239, 86463), (717, 28821), (739, 27963), (2151, 9607), (2217, 9321), (3107, 6651)]