21810316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13397}}^1$

素因数の和:13449

約数の個数: 24

約数和(自身を含む): 42766416

約数和(自身を除く): 20956100

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13397, 26794, 53588, 147367, 294734, 495689, 589468, 991378, 1982756, 5452579, 10905158, 21810316]

約数ペア:

[(1, 21810316), (2, 10905158), (4, 5452579), (11, 1982756), (22, 991378), (37, 589468), (44, 495689), (74, 294734), (148, 147367), (407, 53588), (814, 26794), (1628, 13397)]