208621217

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{3923}}^1$

素因数の和:4108

約数の個数: 16

約数和(自身を含む): 244104192

約数和(自身を除く): 35482975

約数列:

[1, 7, 71, 107, 497, 749, 3923, 7597, 27461, 53179, 278533, 419761, 1949731, 2938327, 29803031, 208621217]

約数ペア:

[(1, 208621217), (7, 29803031), (71, 2938327), (107, 1949731), (497, 419761), (749, 278533), (3923, 53179), (7597, 27461)]