16404905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4201}}^1$

素因数の和:4288

約数の個数: 16

約数和(自身を含む): 21783168

約数和(自身を除く): 5378263

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 4201, 21005, 46211, 231055, 298271, 1491355, 3280981, 16404905]

約数ペア:

[(1, 16404905), (5, 3280981), (11, 1491355), (55, 298271), (71, 231055), (355, 46211), (781, 21005), (3905, 4201)]