388647

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 665600

約数和(自身を除く): 276953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 199, 217, 279, 597, 651, 1393, 1791, 1953, 4179, 6169, 12537, 18507, 43183, 55521, 129549, 388647]

約数ペア:

[(1, 388647), (3, 129549), (7, 55521), (9, 43183), (21, 18507), (31, 12537), (63, 6169), (93, 4179), (199, 1953), (217, 1791), (279, 1393), (597, 651)]