20989188

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53003}}^1$

素因数の和:53024

約数の個数: 36

約数和(自身を含む): 57880368

約数和(自身を除く): 36891180

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 53003, 106006, 159009, 212012, 318018, 477027, 583033, 636036, 954054, 1166066, 1749099, 1908108, 2332132, 3498198, 5247297, 6996396, 10494594, 20989188]

約数ペア:

[(1, 20989188), (2, 10494594), (3, 6996396), (4, 5247297), (6, 3498198), (9, 2332132), (11, 1908108), (12, 1749099), (18, 1166066), (22, 954054), (33, 636036), (36, 583033), (44, 477027), (66, 318018), (99, 212012), (132, 159009), (198, 106006), (396, 53003)]