821397143

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{986071}}^1$

素因数の和:986102

約数の個数: 12

約数和(自身を含む): 1011709872

約数和(自身を除く): 190312729

約数列:

[1, 7, 17, 49, 119, 833, 986071, 6902497, 16763207, 48317479, 117342449, 821397143]

約数ペア:

[(1, 821397143), (7, 117342449), (17, 48317479), (49, 16763207), (119, 6902497), (833, 986071)]