20646009

素因数分解:

$3^6\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:368

約数の個数: 28

約数和(自身を含む): 31338496

約数和(自身を除く): 10692487

約数列:

[1, 3, 9, 27, 81, 127, 223, 243, 381, 669, 729, 1143, 2007, 3429, 6021, 10287, 18063, 28321, 30861, 54189, 84963, 92583, 162567, 254889, 764667, 2294001, 6882003, 20646009]

約数ペア:

[(1, 20646009), (3, 6882003), (9, 2294001), (27, 764667), (81, 254889), (127, 162567), (223, 92583), (243, 84963), (381, 54189), (669, 30861), (729, 28321), (1143, 18063), (2007, 10287), (3429, 6021)]