20516508

素因数分解:

$2^2\times 3^2\times {\mathrm{569903}}^1$

素因数の和:569913

約数の個数: 18

約数和(自身を含む): 51861264

約数和(自身を除く): 31344756

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569903, 1139806, 1709709, 2279612, 3419418, 5129127, 6838836, 10258254, 20516508]

約数ペア:

[(1, 20516508), (2, 10258254), (3, 6838836), (4, 5129127), (6, 3419418), (9, 2279612), (12, 1709709), (18, 1139806), (36, 569903)]