20679197

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{991}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 25903104

約数和(自身を除く): 5223907

約数列:

[1, 7, 11, 77, 271, 991, 1897, 2981, 6937, 10901, 20867, 76307, 268561, 1879927, 2954171, 20679197]

約数ペア:

[(1, 20679197), (7, 2954171), (11, 1879927), (77, 268561), (271, 76307), (991, 20867), (1897, 10901), (2981, 6937)]