28457811

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{859}}^1$

素因数の和:1280

約数の個数: 20

約数和(自身を含む): 42664600

約数和(自身を除く): 14206789

約数列:

[1, 3, 9, 27, 81, 409, 859, 1227, 2577, 3681, 7731, 11043, 23193, 33129, 69579, 351331, 1053993, 3161979, 9485937, 28457811]

約数ペア:

[(1, 28457811), (3, 9485937), (9, 3161979), (27, 1053993), (81, 351331), (409, 69579), (859, 33129), (1227, 23193), (2577, 11043), (3681, 7731)]