20656976

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2269}}^1$

素因数の和:2846

約数の個数: 20

約数和(自身を含む): 40110900

約数和(自身を除く): 19453924

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2269, 2276, 4538, 4552, 9076, 9104, 18152, 36304, 1291061, 2582122, 5164244, 10328488, 20656976]

約数ペア:

[(1, 20656976), (2, 10328488), (4, 5164244), (8, 2582122), (16, 1291061), (569, 36304), (1138, 18152), (2269, 9104), (2276, 9076), (4538, 4552)]