21184156

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5443}}^1$

素因数の和:5593

約数の個数: 24

約数和(自身を含む): 42680960

約数和(自身を除く): 21496804

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5443, 10886, 21772, 38101, 76202, 152404, 756577, 1513154, 3026308, 5296039, 10592078, 21184156]

約数ペア:

[(1, 21184156), (2, 10592078), (4, 5296039), (7, 3026308), (14, 1513154), (28, 756577), (139, 152404), (278, 76202), (556, 38101), (973, 21772), (1946, 10886), (3892, 5443)]