20704642

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{281}}^1$

素因数の和:586

約数の個数: 32

約数和(自身を含む): 37630080

約数和(自身を除く): 16925438

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 277, 281, 554, 562, 1939, 1967, 3878, 3934, 5263, 5339, 10526, 10678, 36841, 37373, 73682, 74746, 77837, 155674, 544859, 1089718, 1478903, 2957806, 10352321, 20704642]

約数ペア:

[(1, 20704642), (2, 10352321), (7, 2957806), (14, 1478903), (19, 1089718), (38, 544859), (133, 155674), (266, 77837), (277, 74746), (281, 73682), (554, 37373), (562, 36841), (1939, 10678), (1967, 10526), (3878, 5339), (3934, 5263)]