21693616

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1777}}^1$

素因数の和:1901

約数の個数: 40

約数和(自身を含む): 48503840

約数和(自身を除く): 26810224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 1777, 3052, 3554, 6104, 7108, 12208, 12439, 14216, 24878, 28432, 49756, 99512, 193693, 199024, 387386, 774772, 1355851, 1549544, 2711702, 3099088, 5423404, 10846808, 21693616]

約数ペア:

[(1, 21693616), (2, 10846808), (4, 5423404), (7, 3099088), (8, 2711702), (14, 1549544), (16, 1355851), (28, 774772), (56, 387386), (109, 199024), (112, 193693), (218, 99512), (436, 49756), (763, 28432), (872, 24878), (1526, 14216), (1744, 12439), (1777, 12208), (3052, 7108), (3554, 6104)]