8213919

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 12935808

約数和(自身を除く): 4721889

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 787, 1491, 2361, 3479, 5509, 10437, 16527, 38563, 55877, 115689, 167631, 391139, 1173417, 2737973, 8213919]

約数ペア:

[(1, 8213919), (3, 2737973), (7, 1173417), (21, 391139), (49, 167631), (71, 115689), (147, 55877), (213, 38563), (497, 16527), (787, 10437), (1491, 5509), (2361, 3479)]