20804968

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{83891}}^1$

素因数の和:83928

約数の個数: 16

約数和(自身を含む): 40268160

約数和(自身を除く): 19463192

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 83891, 167782, 335564, 671128, 2600621, 5201242, 10402484, 20804968]

約数ペア:

[(1, 20804968), (2, 10402484), (4, 5201242), (8, 2600621), (31, 671128), (62, 335564), (124, 167782), (248, 83891)]