16720816

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6491}}^1$

素因数の和:6529

約数の個数: 40

約数和(自身を含む): 38640384

約数和(自身を除く): 21919568

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 6491, 12982, 25964, 45437, 51928, 90874, 103856, 149293, 181748, 298586, 363496, 597172, 726992, 1045051, 1194344, 2090102, 2388688, 4180204, 8360408, 16720816]

約数ペア:

[(1, 16720816), (2, 8360408), (4, 4180204), (7, 2388688), (8, 2090102), (14, 1194344), (16, 1045051), (23, 726992), (28, 597172), (46, 363496), (56, 298586), (92, 181748), (112, 149293), (161, 103856), (184, 90874), (322, 51928), (368, 45437), (644, 25964), (1288, 12982), (2576, 6491)]