28781126

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{17921}}^1$

素因数の和:18007

約数の個数: 16

約数和(自身を含む): 47744208

約数和(自身を除く): 18963082

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 17921, 35842, 197131, 394262, 1308233, 2616466, 14390563, 28781126]

約数ペア:

[(1, 28781126), (2, 14390563), (11, 2616466), (22, 1308233), (73, 394262), (146, 197131), (803, 35842), (1606, 17921)]