20003855

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{283}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 24564864

約数和(自身を除く): 4561009

約数列:

[1, 5, 67, 211, 283, 335, 1055, 1415, 14137, 18961, 59713, 70685, 94805, 298565, 4000771, 20003855]

約数ペア:

[(1, 20003855), (5, 4000771), (67, 298565), (211, 94805), (283, 70685), (335, 59713), (1055, 18961), (1415, 14137)]