21997228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{16127}}^1$

素因数の和:16173

約数の個数: 24

約数和(自身を含む): 43352064

約数和(自身を除く): 21354836

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 16127, 32254, 64508, 177397, 354794, 499937, 709588, 999874, 1999748, 5499307, 10998614, 21997228]

約数ペア:

[(1, 21997228), (2, 10998614), (4, 5499307), (11, 1999748), (22, 999874), (31, 709588), (44, 499937), (62, 354794), (124, 177397), (341, 64508), (682, 32254), (1364, 16127)]