20469812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42293}}^1$

素因数の和:42319

約数の個数: 18

約数和(自身を含む): 39375714

約数和(自身を除く): 18905902

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42293, 84586, 169172, 465223, 930446, 1860892, 5117453, 10234906, 20469812]

約数ペア:

[(1, 20469812), (2, 10234906), (4, 5117453), (11, 1860892), (22, 930446), (44, 465223), (121, 169172), (242, 84586), (484, 42293)]