28306789

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 34209280

約数和(自身を除く): 5902491

約数列:

[1, 7, 19, 133, 331, 643, 2317, 4501, 6289, 12217, 44023, 85519, 212833, 1489831, 4043827, 28306789]

約数ペア:

[(1, 28306789), (7, 4043827), (19, 1489831), (133, 212833), (331, 85519), (643, 44023), (2317, 12217), (4501, 6289)]