21572912

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12601}}^1$

素因数の和:12716

約数の個数: 20

約数和(自身を含む): 42191496

約数和(自身を除く): 20618584

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12601, 25202, 50404, 100808, 201616, 1348307, 2696614, 5393228, 10786456, 21572912]

約数ペア:

[(1, 21572912), (2, 10786456), (4, 5393228), (8, 2696614), (16, 1348307), (107, 201616), (214, 100808), (428, 50404), (856, 25202), (1712, 12601)]