18489988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{8941}}^1$

素因数の和:9003

約数の個数: 24

約数和(自身を含む): 36054144

約数和(自身を除く): 17564156

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 8941, 17882, 35764, 98351, 196702, 393404, 420227, 840454, 1680908, 4622497, 9244994, 18489988]

約数ペア:

[(1, 18489988), (2, 9244994), (4, 4622497), (11, 1680908), (22, 840454), (44, 420227), (47, 393404), (94, 196702), (188, 98351), (517, 35764), (1034, 17882), (2068, 8941)]