21750663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28657}}^1$

素因数の和:28694

約数の個数: 16

約数和(自身を含む): 33014016

約数和(自身を除く): 11263353

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28657, 85971, 315227, 659111, 945681, 1977333, 7250221, 21750663]

約数ペア:

[(1, 21750663), (3, 7250221), (11, 1977333), (23, 945681), (33, 659111), (69, 315227), (253, 85971), (759, 28657)]