19980857549

素因数分解:

${\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{2803}}^1$

素因数の和:3045

約数の個数: 24

約数和(自身を含む): 21209545728

約数和(自身を除く): 1228688179

約数列:

[1, 37, 41, 127, 1369, 1517, 2803, 4699, 5207, 56129, 103711, 114923, 173863, 192659, 355981, 3837307, 4252151, 7128383, 13171297, 14595221, 157329587, 487337989, 540023177, 19980857549]

約数ペア:

[(1, 19980857549), (37, 540023177), (41, 487337989), (127, 157329587), (1369, 14595221), (1517, 13171297), (2803, 7128383), (4699, 4252151), (5207, 3837307), (56129, 355981), (103711, 192659), (114923, 173863)]