18400172

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2557}}^1$

素因数の和:2825

約数の個数: 24

約数和(自身を含む): 36957984

約数和(自身を除く): 18557812

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 2557, 3598, 5114, 7196, 10228, 17899, 35798, 71596, 657149, 1314298, 2628596, 4600043, 9200086, 18400172]

約数ペア:

[(1, 18400172), (2, 9200086), (4, 4600043), (7, 2628596), (14, 1314298), (28, 657149), (257, 71596), (514, 35798), (1028, 17899), (1799, 10228), (2557, 7196), (3598, 5114)]