21616568

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{25253}}^1$

素因数の和:25366

約数の個数: 16

約数和(自身を含む): 40911480

約数和(自身を除く): 19294912

約数列:

[1, 2, 4, 8, 107, 214, 428, 856, 25253, 50506, 101012, 202024, 2702071, 5404142, 10808284, 21616568]

約数ペア:

[(1, 21616568), (2, 10808284), (4, 5404142), (8, 2702071), (107, 202024), (214, 101012), (428, 50506), (856, 25253)]