20449495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12821}}^1$

素因数の和:12866

約数の個数: 16

約数和(自身を含む): 27695520

約数和(自身を除く): 7246025

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12821, 64105, 141031, 371809, 705155, 1859045, 4089899, 20449495]

約数ペア:

[(1, 20449495), (5, 4089899), (11, 1859045), (29, 705155), (55, 371809), (145, 141031), (319, 64105), (1595, 12821)]