21115366

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1187

約数の個数: 16

約数和(自身を含む): 32332608

約数和(自身を除く): 11217242

約数列:

[1, 2, 83, 131, 166, 262, 971, 1942, 10873, 21746, 80593, 127201, 161186, 254402, 10557683, 21115366]

約数ペア:

[(1, 21115366), (2, 10557683), (83, 254402), (131, 161186), (166, 127201), (262, 80593), (971, 21746), (1942, 10873)]