20667854

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{821}}^1$

素因数の和:1171

約数の個数: 16

約数和(自身を含む): 31900176

約数和(自身を除く): 11232322

約数列:

[1, 2, 41, 82, 307, 614, 821, 1642, 12587, 25174, 33661, 67322, 252047, 504094, 10333927, 20667854]

約数ペア:

[(1, 20667854), (2, 10333927), (41, 504094), (82, 252047), (307, 67322), (614, 33661), (821, 25174), (1642, 12587)]