20997154

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:681

約数の個数: 16

約数和(自身を含む): 31945536

約数和(自身を除く): 10948382

約数列:

[1, 2, 151, 251, 277, 302, 502, 554, 37901, 41827, 69527, 75802, 83654, 139054, 10498577, 20997154]

約数ペア:

[(1, 20997154), (2, 10498577), (151, 139054), (251, 83654), (277, 75802), (302, 69527), (502, 41827), (554, 37901)]