20078649

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6907}}^1$

素因数の和:6949

約数の個数: 24

約数和(自身を含む): 32329440

約数和(自身を除く): 12250791

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 6907, 20721, 62163, 117419, 131233, 352257, 393699, 1056771, 1181097, 2230961, 6692883, 20078649]

約数ペア:

[(1, 20078649), (3, 6692883), (9, 2230961), (17, 1181097), (19, 1056771), (51, 393699), (57, 352257), (153, 131233), (171, 117419), (323, 62163), (969, 20721), (2907, 6907)]