21091924

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20359}}^1$

素因数の和:20407

約数の個数: 24

約数和(自身を含む): 43326080

約数和(自身を除く): 22234156

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20359, 40718, 81436, 142513, 285026, 570052, 753283, 1506566, 3013132, 5272981, 10545962, 21091924]

約数ペア:

[(1, 21091924), (2, 10545962), (4, 5272981), (7, 3013132), (14, 1506566), (28, 753283), (37, 570052), (74, 285026), (148, 142513), (259, 81436), (518, 40718), (1036, 20359)]