20872864

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9187}}^1$

素因数の和:9268

約数の個数: 24

約数和(自身を含む): 41676768

約数和(自身を除く): 20803904

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9187, 18374, 36748, 73496, 146992, 293984, 652277, 1304554, 2609108, 5218216, 10436432, 20872864]

約数ペア:

[(1, 20872864), (2, 10436432), (4, 5218216), (8, 2609108), (16, 1304554), (32, 652277), (71, 293984), (142, 146992), (284, 73496), (568, 36748), (1136, 18374), (2272, 9187)]