21150248

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{16421}}^1$

素因数の和:16457

約数の個数: 32

約数和(自身を含む): 47295360

約数和(自身を除く): 26145112

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 161, 184, 322, 644, 1288, 16421, 32842, 65684, 114947, 131368, 229894, 377683, 459788, 755366, 919576, 1510732, 2643781, 3021464, 5287562, 10575124, 21150248]

約数ペア:

[(1, 21150248), (2, 10575124), (4, 5287562), (7, 3021464), (8, 2643781), (14, 1510732), (23, 919576), (28, 755366), (46, 459788), (56, 377683), (92, 229894), (161, 131368), (184, 114947), (322, 65684), (644, 32842), (1288, 16421)]