21383608

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{4157}}^1$

素因数の和:4806

約数の個数: 16

約数和(自身を含む): 40166280

約数和(自身を除く): 18782672

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 4157, 5144, 8314, 16628, 33256, 2672951, 5345902, 10691804, 21383608]

約数ペア:

[(1, 21383608), (2, 10691804), (4, 5345902), (8, 2672951), (643, 33256), (1286, 16628), (2572, 8314), (4157, 5144)]