21115754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{2719}}^1$

素因数の和:3085

約数の個数: 16

約数和(自身を含む): 34663680

約数和(自身を除く): 13547926

約数列:

[1, 2, 11, 22, 353, 706, 2719, 3883, 5438, 7766, 29909, 59818, 959807, 1919614, 10557877, 21115754]

約数ペア:

[(1, 21115754), (2, 10557877), (11, 1919614), (22, 959807), (353, 59818), (706, 29909), (2719, 7766), (3883, 5438)]