19872305

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{821}}^1$

素因数の和:976

約数の個数: 16

約数和(自身を含む): 24620544

約数和(自身を除く): 4748239

約数列:

[1, 5, 47, 103, 235, 515, 821, 4105, 4841, 24205, 38587, 84563, 192935, 422815, 3974461, 19872305]

約数ペア:

[(1, 19872305), (5, 3974461), (47, 422815), (103, 192935), (235, 84563), (515, 38587), (821, 24205), (4105, 4841)]