21880451588

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{521}}^1\times {\mathrm{80147}}^1$

素因数の和:80803

約数の個数: 24

約数和(自身を含む): 38657624544

約数和(自身を除く): 16777172956

約数列:

[1, 2, 4, 131, 262, 521, 524, 1042, 2084, 68251, 80147, 136502, 160294, 273004, 320588, 10499257, 20998514, 41756587, 41997028, 83513174, 167026348, 5470112897, 10940225794, 21880451588]

約数ペア:

[(1, 21880451588), (2, 10940225794), (4, 5470112897), (131, 167026348), (262, 83513174), (521, 41997028), (524, 41756587), (1042, 20998514), (2084, 10499257), (68251, 320588), (80147, 273004), (136502, 160294)]