20786684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{571}}^1$

素因数の和:1073

約数の個数: 24

約数和(自身を含む): 38438400

約数和(自身を除く): 17651716

約数列:

[1, 2, 4, 19, 38, 76, 479, 571, 958, 1142, 1916, 2284, 9101, 10849, 18202, 21698, 36404, 43396, 273509, 547018, 1094036, 5196671, 10393342, 20786684]

約数ペア:

[(1, 20786684), (2, 10393342), (4, 5196671), (19, 1094036), (38, 547018), (76, 273509), (479, 43396), (571, 36404), (958, 21698), (1142, 18202), (1916, 10849), (2284, 9101)]