2790279

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 4248192

約数和(自身を除く): 1457913

約数列:

[1, 3, 9, 31, 73, 93, 137, 219, 279, 411, 657, 1233, 2263, 4247, 6789, 10001, 12741, 20367, 30003, 38223, 90009, 310031, 930093, 2790279]

約数ペア:

[(1, 2790279), (3, 930093), (9, 310031), (31, 90009), (73, 38223), (93, 30003), (137, 20367), (219, 12741), (279, 10001), (411, 6789), (657, 4247), (1233, 2263)]