20839437

素因数分解:

$3^5\times {\mathrm{191}}^1\times {\mathrm{449}}^1$

素因数の和:655

約数の個数: 24

約数和(自身を含む): 31449600

約数和(自身を除く): 10610163

約数列:

[1, 3, 9, 27, 81, 191, 243, 449, 573, 1347, 1719, 4041, 5157, 12123, 15471, 36369, 46413, 85759, 109107, 257277, 771831, 2315493, 6946479, 20839437]

約数ペア:

[(1, 20839437), (3, 6946479), (9, 2315493), (27, 771831), (81, 257277), (191, 109107), (243, 85759), (449, 46413), (573, 36369), (1347, 15471), (1719, 12123), (4041, 5157)]