20625943

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 18

約数和(自身を含む): 23260032

約数和(自身を除く): 2634089

約数列:

[1, 13, 31, 127, 169, 403, 961, 1651, 3937, 5239, 12493, 21463, 51181, 122047, 162409, 665353, 1586611, 20625943]

約数ペア:

[(1, 20625943), (13, 1586611), (31, 665353), (127, 162409), (169, 122047), (403, 51181), (961, 21463), (1651, 12493), (3937, 5239)]