18919527

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 28723200

約数和(自身を除く): 9803673

約数列:

[1, 3, 11, 33, 43, 67, 129, 199, 201, 473, 597, 737, 1419, 2189, 2211, 2881, 6567, 8557, 8643, 13333, 25671, 31691, 39999, 94127, 95073, 146663, 282381, 439989, 573319, 1719957, 6306509, 18919527]

約数ペア:

[(1, 18919527), (3, 6306509), (11, 1719957), (33, 573319), (43, 439989), (67, 282381), (129, 146663), (199, 95073), (201, 94127), (473, 39999), (597, 31691), (737, 25671), (1419, 13333), (2189, 8643), (2211, 8557), (2881, 6567)]