21052892

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{7027}}^1$

素因数の和:7145

約数の個数: 24

約数和(自身を含む): 42505344

約数和(自身を除く): 21452452

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 7027, 14054, 28108, 49189, 98378, 196756, 751889, 1503778, 3007556, 5263223, 10526446, 21052892]

約数ペア:

[(1, 21052892), (2, 10526446), (4, 5263223), (7, 3007556), (14, 1503778), (28, 751889), (107, 196756), (214, 98378), (428, 49189), (749, 28108), (1498, 14054), (2996, 7027)]