20880970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17257}}^1$

素因数の和:17286

約数の個数: 24

約数和(自身を含む): 41315652

約数和(自身を除く): 20434682

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17257, 34514, 86285, 172570, 189827, 379654, 949135, 1898270, 2088097, 4176194, 10440485, 20880970]

約数ペア:

[(1, 20880970), (2, 10440485), (5, 4176194), (10, 2088097), (11, 1898270), (22, 949135), (55, 379654), (110, 189827), (121, 172570), (242, 86285), (605, 34514), (1210, 17257)]