21857584

素因数分解:

$2^4\times 7^1\times {\mathrm{195157}}^1$

素因数の和:195172

約数の個数: 20

約数和(自身を含む): 48399184

約数和(自身を除く): 26541600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195157, 390314, 780628, 1366099, 1561256, 2732198, 3122512, 5464396, 10928792, 21857584]

約数ペア:

[(1, 21857584), (2, 10928792), (4, 5464396), (7, 3122512), (8, 2732198), (14, 1561256), (16, 1366099), (28, 780628), (56, 390314), (112, 195157)]