19128772

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{28297}}^1$

素因数の和:28327

約数の個数: 18

約数和(自身を含む): 36249738

約数和(自身を除く): 17120966

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 28297, 56594, 113188, 367861, 735722, 1471444, 4782193, 9564386, 19128772]

約数ペア:

[(1, 19128772), (2, 9564386), (4, 4782193), (13, 1471444), (26, 735722), (52, 367861), (169, 113188), (338, 56594), (676, 28297)]