28857521

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1447}}^1$

素因数の和:1509

約数の個数: 24

約数和(自身を含む): 37636416

約数和(自身を除く): 8778895

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1447, 1813, 2849, 10129, 15917, 19943, 53539, 70903, 111419, 374773, 588929, 779933, 2623411, 4122503, 28857521]

約数ペア:

[(1, 28857521), (7, 4122503), (11, 2623411), (37, 779933), (49, 588929), (77, 374773), (259, 111419), (407, 70903), (539, 53539), (1447, 19943), (1813, 15917), (2849, 10129)]