20668756

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{653}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 37301544

約数和(自身を除く): 16632788

約数列:

[1, 2, 4, 41, 82, 164, 193, 386, 653, 772, 1306, 2612, 7913, 15826, 26773, 31652, 53546, 107092, 126029, 252058, 504116, 5167189, 10334378, 20668756]

約数ペア:

[(1, 20668756), (2, 10334378), (4, 5167189), (41, 504116), (82, 252058), (164, 126029), (193, 107092), (386, 53546), (653, 31652), (772, 26773), (1306, 15826), (2612, 7913)]