311990279

素因数分解:

${\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 342186768

約数和(自身を除く): 30196489

約数列:

[1, 19, 41, 107, 197, 361, 779, 2033, 3743, 4387, 8077, 14801, 21079, 38627, 71117, 83353, 153463, 400501, 864239, 1583707, 2915797, 7609519, 16420541, 311990279]

約数ペア:

[(1, 311990279), (19, 16420541), (41, 7609519), (107, 2915797), (197, 1583707), (361, 864239), (779, 400501), (2033, 153463), (3743, 83353), (4387, 71117), (8077, 38627), (14801, 21079)]