21052874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8269}}^1$

素因数の和:8357

約数の個数: 16

約数和(自身を含む): 33741600

約数和(自身を除く): 12688726

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8269, 16538, 157111, 314222, 554023, 1108046, 10526437, 21052874]

約数ペア:

[(1, 21052874), (2, 10526437), (19, 1108046), (38, 554023), (67, 314222), (134, 157111), (1273, 16538), (2546, 8269)]