21655508

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20903}}^1$

素因数の和:20951

約数の個数: 24

約数和(自身を含む): 44483712

約数和(自身を除く): 22828204

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20903, 41806, 83612, 146321, 292642, 585284, 773411, 1546822, 3093644, 5413877, 10827754, 21655508]

約数ペア:

[(1, 21655508), (2, 10827754), (4, 5413877), (7, 3093644), (14, 1546822), (28, 773411), (37, 585284), (74, 292642), (148, 146321), (259, 83612), (518, 41806), (1036, 20903)]