20287404

素因数分解:

$2^2\times 3^2\times {\mathrm{653}}^1\times {\mathrm{863}}^1$

素因数の和:1526

約数の個数: 36

約数和(自身を含む): 51420096

約数和(自身を除く): 31132692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 653, 863, 1306, 1726, 1959, 2589, 2612, 3452, 3918, 5178, 5877, 7767, 7836, 10356, 11754, 15534, 23508, 31068, 563539, 1127078, 1690617, 2254156, 3381234, 5071851, 6762468, 10143702, 20287404]

約数ペア:

[(1, 20287404), (2, 10143702), (3, 6762468), (4, 5071851), (6, 3381234), (9, 2254156), (12, 1690617), (18, 1127078), (36, 563539), (653, 31068), (863, 23508), (1306, 15534), (1726, 11754), (1959, 10356), (2589, 7836), (2612, 7767), (3452, 5877), (3918, 5178)]