21508712428

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{7179143}}^1$

素因数の和:7179261

約数の個数: 24

約数和(自身を含む): 43419462912

約数和(自身を除く): 21910750484

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 7179143, 14358286, 28716572, 50254001, 100508002, 201016004, 768168301, 1536336602, 3072673204, 5377178107, 10754356214, 21508712428]

約数ペア:

[(1, 21508712428), (2, 10754356214), (4, 5377178107), (7, 3072673204), (14, 1536336602), (28, 768168301), (107, 201016004), (214, 100508002), (428, 50254001), (749, 28716572), (1498, 14358286), (2996, 7179143)]