21488236

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69767}}^1$

素因数の和:69789

約数の個数: 24

約数和(自身を含む): 46884096

約数和(自身を除く): 25395860

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69767, 139534, 279068, 488369, 767437, 976738, 1534874, 1953476, 3069748, 5372059, 10744118, 21488236]

約数ペア:

[(1, 21488236), (2, 10744118), (4, 5372059), (7, 3069748), (11, 1953476), (14, 1534874), (22, 976738), (28, 767437), (44, 488369), (77, 279068), (154, 139534), (308, 69767)]