17686287

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 27291264

約数和(自身を除く): 9604977

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 1987, 2967, 5961, 8901, 17883, 45701, 85441, 137103, 256323, 411309, 768969, 1965143, 5895429, 17686287]

約数ペア:

[(1, 17686287), (3, 5895429), (9, 1965143), (23, 768969), (43, 411309), (69, 256323), (129, 137103), (207, 85441), (387, 45701), (989, 17883), (1987, 8901), (2967, 5961)]