99721985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{25537}}^1$

素因数の和:25624

約数の個数: 16

約数和(自身を含む): 132388992

約数和(自身を除く): 32667007

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 25537, 127685, 280907, 1404535, 1813127, 9065635, 19944397, 99721985]

約数ペア:

[(1, 99721985), (5, 19944397), (11, 9065635), (55, 1813127), (71, 1404535), (355, 280907), (781, 127685), (3905, 25537)]