20278203

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{26717}}^1$

素因数の和:26754

約数の個数: 16

約数和(自身を含む): 30779136

約数和(自身を除く): 10500933

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 26717, 80151, 293887, 614491, 881661, 1843473, 6759401, 20278203]

約数ペア:

[(1, 20278203), (3, 6759401), (11, 1843473), (23, 881661), (33, 614491), (69, 293887), (253, 80151), (759, 26717)]