28866789

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9749}}^1$

素因数の和:9809

約数の個数: 24

約数和(自身を含む): 48672000

約数和(自身を除く): 19805211

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9749, 29247, 68243, 87741, 204729, 458203, 614187, 1374609, 3207421, 4123827, 9622263, 28866789]

約数ペア:

[(1, 28866789), (3, 9622263), (7, 4123827), (9, 3207421), (21, 1374609), (47, 614187), (63, 458203), (141, 204729), (329, 87741), (423, 68243), (987, 29247), (2961, 9749)]