20020557

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{1129}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 27987840

約数和(自身を除く): 7967283

約数列:

[1, 3, 23, 69, 257, 771, 1129, 3387, 5911, 17733, 25967, 77901, 290153, 870459, 6673519, 20020557]

約数ペア:

[(1, 20020557), (3, 6673519), (23, 870459), (69, 290153), (257, 77901), (771, 25967), (1129, 17733), (3387, 5911)]