21989035

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1787}}^1$

素因数の和:1922

約数の個数: 16

約数和(自身を含む): 27806976

約数和(自身を除く): 5817941

約数列:

[1, 5, 23, 107, 115, 535, 1787, 2461, 8935, 12305, 41101, 191209, 205505, 956045, 4397807, 21989035]

約数ペア:

[(1, 21989035), (5, 4397807), (23, 956045), (107, 205505), (115, 191209), (535, 41101), (1787, 12305), (2461, 8935)]