21968151

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1759}}^1$

素因数の和:1966

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 8782569

約数列:

[1, 3, 23, 69, 181, 543, 1759, 4163, 5277, 12489, 40457, 121371, 318379, 955137, 7322717, 21968151]

約数ペア:

[(1, 21968151), (3, 7322717), (23, 955137), (69, 318379), (181, 121371), (543, 40457), (1759, 12489), (4163, 5277)]