21402782

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{971}}^1$

素因数の和:1183

約数の個数: 16

約数和(自身を含む): 32752512

約数和(自身を除く): 11349730

約数列:

[1, 2, 103, 107, 206, 214, 971, 1942, 11021, 22042, 100013, 103897, 200026, 207794, 10701391, 21402782]

約数ペア:

[(1, 21402782), (2, 10701391), (103, 207794), (107, 200026), (206, 103897), (214, 100013), (971, 22042), (1942, 11021)]