20494863

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 33895680

約数和(自身を除く): 13400817

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 193, 207, 243, 437, 513, 579, 621, 1311, 1539, 1737, 1863, 3667, 3933, 4439, 4617, 5211, 5589, 11001, 11799, 13317, 15633, 33003, 35397, 39951, 46899, 84341, 99009, 106191, 119853, 253023, 297027, 359559, 759069, 891081, 1078677, 2277207, 6831621, 20494863]

約数ペア:

[(1, 20494863), (3, 6831621), (9, 2277207), (19, 1078677), (23, 891081), (27, 759069), (57, 359559), (69, 297027), (81, 253023), (171, 119853), (193, 106191), (207, 99009), (243, 84341), (437, 46899), (513, 39951), (579, 35397), (621, 33003), (1311, 15633), (1539, 13317), (1737, 11799), (1863, 11001), (3667, 5589), (3933, 5211), (4439, 4617)]