20796028

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42967}}^1$

素因数の和:42993

約数の個数: 18

約数和(自身を含む): 40003208

約数和(自身を除く): 19207180

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42967, 85934, 171868, 472637, 945274, 1890548, 5199007, 10398014, 20796028]

約数ペア:

[(1, 20796028), (2, 10398014), (4, 5199007), (11, 1890548), (22, 945274), (44, 472637), (121, 171868), (242, 85934), (484, 42967)]