18490985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{1031}}^1$

素因数の和:1264

約数の個数: 16

約数和(自身を含む): 23628672

約数和(自身を除く): 5137687

約数列:

[1, 5, 17, 85, 211, 1031, 1055, 3587, 5155, 17527, 17935, 87635, 217541, 1087705, 3698197, 18490985]

約数ペア:

[(1, 18490985), (5, 3698197), (17, 1087705), (85, 217541), (211, 87635), (1031, 17935), (1055, 17527), (3587, 5155)]