20379989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:5000

約数の個数: 16

約数和(自身を含む): 25313280

約数和(自身を除く): 4933291

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 4943, 34601, 93917, 153233, 657419, 1072631, 2911427, 20379989]

約数ペア:

[(1, 20379989), (7, 2911427), (19, 1072631), (31, 657419), (133, 153233), (217, 93917), (589, 34601), (4123, 4943)]