21793989

素因数分解:

$3^1\times 7^1\times {\mathrm{613}}^1\times {\mathrm{1693}}^1$

素因数の和:2316

約数の個数: 16

約数和(自身を含む): 33283712

約数和(自身を除く): 11489723

約数列:

[1, 3, 7, 21, 613, 1693, 1839, 4291, 5079, 11851, 12873, 35553, 1037809, 3113427, 7264663, 21793989]

約数ペア:

[(1, 21793989), (3, 7264663), (7, 3113427), (21, 1037809), (613, 35553), (1693, 12873), (1839, 11851), (4291, 5079)]