19678989

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{863}}^1$

素因数の和:1568

約数の個数: 16

約数和(自身を含む): 28698624

約数和(自身を除く): 9019635

約数列:

[1, 3, 11, 33, 691, 863, 2073, 2589, 7601, 9493, 22803, 28479, 596333, 1788999, 6559663, 19678989]

約数ペア:

[(1, 19678989), (3, 6559663), (11, 1788999), (33, 596333), (691, 28479), (863, 22803), (2073, 9493), (2589, 7601)]