21130360

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4937}}^1$

素因数の和:5055

約数の個数: 32

約数和(自身を含む): 47997360

約数和(自身を除く): 26867000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4937, 9874, 19748, 24685, 39496, 49370, 98740, 197480, 528259, 1056518, 2113036, 2641295, 4226072, 5282590, 10565180, 21130360]

約数ペア:

[(1, 21130360), (2, 10565180), (4, 5282590), (5, 4226072), (8, 2641295), (10, 2113036), (20, 1056518), (40, 528259), (107, 197480), (214, 98740), (428, 49370), (535, 39496), (856, 24685), (1070, 19748), (2140, 9874), (4280, 4937)]