28680021

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{14551}}^1$

素因数の和:14633

約数の個数: 16

約数和(自身を含む): 43073920

約数和(自身を除く): 14393899

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 14551, 43653, 130959, 392877, 1062223, 3186669, 9560007, 28680021]

約数ペア:

[(1, 28680021), (3, 9560007), (9, 3186669), (27, 1062223), (73, 392877), (219, 130959), (657, 43653), (1971, 14551)]