20765988

素因数分解:

$2^2\times 3^2\times {\mathrm{613}}^1\times {\mathrm{941}}^1$

素因数の和:1564

約数の個数: 36

約数和(自身を含む): 52633308

約数和(自身を除く): 31867320

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 613, 941, 1226, 1839, 1882, 2452, 2823, 3678, 3764, 5517, 5646, 7356, 8469, 11034, 11292, 16938, 22068, 33876, 576833, 1153666, 1730499, 2307332, 3460998, 5191497, 6921996, 10382994, 20765988]

約数ペア:

[(1, 20765988), (2, 10382994), (3, 6921996), (4, 5191497), (6, 3460998), (9, 2307332), (12, 1730499), (18, 1153666), (36, 576833), (613, 33876), (941, 22068), (1226, 16938), (1839, 11292), (1882, 11034), (2452, 8469), (2823, 7356), (3678, 5646), (3764, 5517)]