21105320

素因数分解:

$2^3\times 5^1\times {\mathrm{527633}}^1$

素因数の和:527644

約数の個数: 16

約数和(自身を含む): 47487060

約数和(自身を除く): 26381740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527633, 1055266, 2110532, 2638165, 4221064, 5276330, 10552660, 21105320]

約数ペア:

[(1, 21105320), (2, 10552660), (4, 5276330), (5, 4221064), (8, 2638165), (10, 2110532), (20, 1055266), (40, 527633)]