21172144

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8219}}^1$

素因数の和:8257

約数の個数: 40

約数和(自身を含む): 48925440

約数和(自身を除く): 27753296

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8219, 16438, 32876, 57533, 65752, 115066, 131504, 189037, 230132, 378074, 460264, 756148, 920528, 1323259, 1512296, 2646518, 3024592, 5293036, 10586072, 21172144]

約数ペア:

[(1, 21172144), (2, 10586072), (4, 5293036), (7, 3024592), (8, 2646518), (14, 1512296), (16, 1323259), (23, 920528), (28, 756148), (46, 460264), (56, 378074), (92, 230132), (112, 189037), (161, 131504), (184, 115066), (322, 65752), (368, 57533), (644, 32876), (1288, 16438), (2576, 8219)]