19666071

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{2503}}^1$

素因数の和:2612

約数の個数: 20

約数和(自身を含む): 29692432

約数和(自身を除く): 10026361

約数列:

[1, 3, 9, 27, 81, 97, 291, 873, 2503, 2619, 7509, 7857, 22527, 67581, 202743, 242791, 728373, 2185119, 6555357, 19666071]

約数ペア:

[(1, 19666071), (3, 6555357), (9, 2185119), (27, 728373), (81, 242791), (97, 202743), (291, 67581), (873, 22527), (2503, 7857), (2619, 7509)]