20448043

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{643}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 26429760

約数和(自身を除く): 5981717

約数列:

[1, 7, 11, 49, 59, 77, 413, 539, 643, 649, 2891, 4501, 4543, 7073, 31507, 31801, 37937, 49511, 265559, 346577, 417307, 1858913, 2921149, 20448043]

約数ペア:

[(1, 20448043), (7, 2921149), (11, 1858913), (49, 417307), (59, 346577), (77, 265559), (413, 49511), (539, 37937), (643, 31801), (649, 31507), (2891, 7073), (4501, 4543)]