19402790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{176389}}^1$

素因数の和:176407

約数の個数: 16

約数和(自身を含む): 38100240

約数和(自身を除く): 18697450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 176389, 352778, 881945, 1763890, 1940279, 3880558, 9701395, 19402790]

約数ペア:

[(1, 19402790), (2, 9701395), (5, 3880558), (10, 1940279), (11, 1763890), (22, 881945), (55, 352778), (110, 176389)]