15820816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89891}}^1$

素因数の和:89910

約数の個数: 20

約数和(自身を含む): 33439824

約数和(自身を除く): 17619008

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 89891, 179782, 359564, 719128, 988801, 1438256, 1977602, 3955204, 7910408, 15820816]

約数ペア:

[(1, 15820816), (2, 7910408), (4, 3955204), (8, 1977602), (11, 1438256), (16, 988801), (22, 719128), (44, 359564), (88, 179782), (176, 89891)]