21683889

素因数分解:

$3^3\times {\mathrm{643}}^1\times {\mathrm{1249}}^1$

素因数の和:1901

約数の個数: 16

約数和(自身を含む): 32200000

約数和(自身を除く): 10516111

約数列:

[1, 3, 9, 27, 643, 1249, 1929, 3747, 5787, 11241, 17361, 33723, 803107, 2409321, 7227963, 21683889]

約数ペア:

[(1, 21683889), (3, 7227963), (9, 2409321), (27, 803107), (643, 33723), (1249, 17361), (1929, 11241), (3747, 5787)]