20506864

素因数分解:

$2^4\times 7^1\times {\mathrm{277}}^1\times {\mathrm{661}}^1$

素因数の和:953

約数の個数: 40

約数和(自身を含む): 45640928

約数和(自身を除く): 25134064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 277, 554, 661, 1108, 1322, 1939, 2216, 2644, 3878, 4432, 4627, 5288, 7756, 9254, 10576, 15512, 18508, 31024, 37016, 74032, 183097, 366194, 732388, 1281679, 1464776, 2563358, 2929552, 5126716, 10253432, 20506864]

約数ペア:

[(1, 20506864), (2, 10253432), (4, 5126716), (7, 2929552), (8, 2563358), (14, 1464776), (16, 1281679), (28, 732388), (56, 366194), (112, 183097), (277, 74032), (554, 37016), (661, 31024), (1108, 18508), (1322, 15512), (1939, 10576), (2216, 9254), (2644, 7756), (3878, 5288), (4432, 4627)]