20988470

素因数分解:

$2^1\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{1997}}^1$

素因数の和:3055

約数の個数: 16

約数和(自身を含む): 37834128

約数和(自身を除く): 16845658

約数列:

[1, 2, 5, 10, 1051, 1997, 2102, 3994, 5255, 9985, 10510, 19970, 2098847, 4197694, 10494235, 20988470]

約数ペア:

[(1, 20988470), (2, 10494235), (5, 4197694), (10, 2098847), (1051, 19970), (1997, 10510), (2102, 9985), (3994, 5255)]