20681081336

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{2690047}}^1$

素因数の和:2690115

約数の個数: 24

約数和(自身を含む): 40068264960

約数和(自身を除く): 19387183624

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 961, 1922, 3844, 7688, 2690047, 5380094, 10760188, 21520376, 83391457, 166782914, 333565828, 667131656, 2585135167, 5170270334, 10340540668, 20681081336]

約数ペア:

[(1, 20681081336), (2, 10340540668), (4, 5170270334), (8, 2585135167), (31, 667131656), (62, 333565828), (124, 166782914), (248, 83391457), (961, 21520376), (1922, 10760188), (3844, 5380094), (7688, 2690047)]