18921033

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{1223}}^1$

素因数の和:1426

約数の個数: 20

約数和(自身を含む): 28435968

約数和(自身を除く): 9514935

約数列:

[1, 3, 9, 27, 81, 191, 573, 1223, 1719, 3669, 5157, 11007, 15471, 33021, 99063, 233593, 700779, 2102337, 6307011, 18921033]

約数ペア:

[(1, 18921033), (3, 6307011), (9, 2102337), (27, 700779), (81, 233593), (191, 99063), (573, 33021), (1223, 15471), (1719, 11007), (3669, 5157)]