20290853

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{317}}^1$

素因数の和:385

約数の個数: 18

約数和(自身を含む): 23388582

約数和(自身を除く): 3097729

約数列:

[1, 11, 23, 121, 253, 317, 529, 2783, 3487, 5819, 7291, 38357, 64009, 80201, 167693, 882211, 1844623, 20290853]

約数ペア:

[(1, 20290853), (11, 1844623), (23, 882211), (121, 167693), (253, 80201), (317, 64009), (529, 38357), (2783, 7291), (3487, 5819)]