20990086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{2287}}^1$

素因数の和:2655

約数の個数: 16

約数和(自身を含む): 34017984

約数和(自身を除く): 13027898

約数列:

[1, 2, 13, 26, 353, 706, 2287, 4574, 4589, 9178, 29731, 59462, 807311, 1614622, 10495043, 20990086]

約数ペア:

[(1, 20990086), (2, 10495043), (13, 1614622), (26, 807311), (353, 59462), (706, 29731), (2287, 9178), (4574, 4589)]