21307588

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2017}}^1$

素因数の和:2179

約数の個数: 24

約数和(自身を含む): 39552800

約数和(自身を除く): 18245212

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 2017, 2641, 4034, 5282, 8068, 10564, 38323, 76646, 153292, 280363, 560726, 1121452, 5326897, 10653794, 21307588]

約数ペア:

[(1, 21307588), (2, 10653794), (4, 5326897), (19, 1121452), (38, 560726), (76, 280363), (139, 153292), (278, 76646), (556, 38323), (2017, 10564), (2641, 8068), (4034, 5282)]