20684464

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68041}}^1$

素因数の和:68068

約数の個数: 20

約数和(自身を含む): 42186040

約数和(自身を除く): 21501576

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68041, 136082, 272164, 544328, 1088656, 1292779, 2585558, 5171116, 10342232, 20684464]

約数ペア:

[(1, 20684464), (2, 10342232), (4, 5171116), (8, 2585558), (16, 1292779), (19, 1088656), (38, 544328), (76, 272164), (152, 136082), (304, 68041)]