21906795

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{85909}}^1$

素因数の和:85934

約数の個数: 16

約数和(自身を含む): 37113120

約数和(自身を除く): 15206325

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 85909, 257727, 429545, 1288635, 1460453, 4381359, 7302265, 21906795]

約数ペア:

[(1, 21906795), (3, 7302265), (5, 4381359), (15, 1460453), (17, 1288635), (51, 429545), (85, 257727), (255, 85909)]