21167205

素因数分解:

$3^1\times 5^1\times {\mathrm{433}}^1\times {\mathrm{3259}}^1$

素因数の和:3700

約数の個数: 16

約数和(自身を含む): 33956160

約数和(自身を除く): 12788955

約数列:

[1, 3, 5, 15, 433, 1299, 2165, 3259, 6495, 9777, 16295, 48885, 1411147, 4233441, 7055735, 21167205]

約数ペア:

[(1, 21167205), (3, 7055735), (5, 4233441), (15, 1411147), (433, 48885), (1299, 16295), (2165, 9777), (3259, 6495)]