20786892

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247463}}^1$

素因数の和:247477

約数の個数: 24

約数和(自身を含む): 55431936

約数和(自身を除く): 34645044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247463, 494926, 742389, 989852, 1484778, 1732241, 2969556, 3464482, 5196723, 6928964, 10393446, 20786892]

約数ペア:

[(1, 20786892), (2, 10393446), (3, 6928964), (4, 5196723), (6, 3464482), (7, 2969556), (12, 1732241), (14, 1484778), (21, 989852), (28, 742389), (42, 494926), (84, 247463)]