20969284

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32561}}^1$

素因数の和:32595

約数の個数: 24

約数和(自身を含む): 43763328

約数和(自身を除く): 22794044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32561, 65122, 130244, 227927, 455854, 748903, 911708, 1497806, 2995612, 5242321, 10484642, 20969284]

約数ペア:

[(1, 20969284), (2, 10484642), (4, 5242321), (7, 2995612), (14, 1497806), (23, 911708), (28, 748903), (46, 455854), (92, 227927), (161, 130244), (322, 65122), (644, 32561)]