2787489

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 4239872

約数和(自身を除く): 1452383

約数列:

[1, 3, 9, 31, 93, 97, 103, 279, 291, 309, 873, 927, 3007, 3193, 9021, 9579, 9991, 27063, 28737, 29973, 89919, 309721, 929163, 2787489]

約数ペア:

[(1, 2787489), (3, 929163), (9, 309721), (31, 89919), (93, 29973), (97, 28737), (103, 27063), (279, 9991), (291, 9579), (309, 9021), (873, 3193), (927, 3007)]