21325089

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1627}}^1$

素因数の和:1904

約数の個数: 16

約数和(自身を含む): 30241728

約数和(自身を除く): 8916639

約数列:

[1, 3, 17, 51, 257, 771, 1627, 4369, 4881, 13107, 27659, 82977, 418139, 1254417, 7108363, 21325089]

約数ペア:

[(1, 21325089), (3, 7108363), (17, 1254417), (51, 418139), (257, 82977), (771, 27659), (1627, 13107), (4369, 4881)]