21919568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{124543}}^1$

素因数の和:124562

約数の個数: 20

約数和(自身を含む): 46330368

約数和(自身を除く): 24410800

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 124543, 249086, 498172, 996344, 1369973, 1992688, 2739946, 5479892, 10959784, 21919568]

約数ペア:

[(1, 21919568), (2, 10959784), (4, 5479892), (8, 2739946), (11, 1992688), (16, 1369973), (22, 996344), (44, 498172), (88, 249086), (176, 124543)]