16561389

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5981}}^1$

素因数の和:6068

約数の個数: 16

約数和(自身を含む): 24119424

約数和(自身を除く): 7558035

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 5981, 17943, 77753, 233259, 424651, 1273953, 5520463, 16561389]

約数ペア:

[(1, 16561389), (3, 5520463), (13, 1273953), (39, 424651), (71, 233259), (213, 77753), (923, 17943), (2769, 5981)]