20799779

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1889}}^1$

素因数の和:1931

約数の個数: 24

約数和(自身を含む): 28153440

約数和(自身を除く): 7353661

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 1001, 1573, 1889, 11011, 13223, 20779, 24557, 145453, 171899, 228569, 270127, 1599983, 1890889, 2971397, 20799779]

約数ペア:

[(1, 20799779), (7, 2971397), (11, 1890889), (13, 1599983), (77, 270127), (91, 228569), (121, 171899), (143, 145453), (847, 24557), (1001, 20779), (1573, 13223), (1889, 11011)]