19665651

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5431}}^1$

素因数の和:5522

約数の個数: 16

約数和(自身を含む): 28159488

約数和(自身を除く): 8493837

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5431, 16293, 92327, 276981, 385601, 1156803, 6555217, 19665651]

約数ペア:

[(1, 19665651), (3, 6555217), (17, 1156803), (51, 385601), (71, 276981), (213, 92327), (1207, 16293), (3621, 5431)]