20790621

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4451}}^1$

素因数の和:4633

約数の個数: 16

約数和(自身を含む): 30985920

約数和(自身を除く): 10195299

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4451, 4671, 13353, 40059, 120177, 770023, 2310069, 6930207, 20790621]

約数ペア:

[(1, 20790621), (3, 6930207), (9, 2310069), (27, 770023), (173, 120177), (519, 40059), (1557, 13353), (4451, 4671)]