18663904

素因数分解:

$2^5\times 7^2\times {\mathrm{11903}}^1$

素因数の和:11927

約数の個数: 36

約数和(自身を含む): 42747264

約数和(自身を除く): 24083360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 11903, 23806, 47612, 83321, 95224, 166642, 190448, 333284, 380896, 583247, 666568, 1166494, 1333136, 2332988, 2666272, 4665976, 9331952, 18663904]

約数ペア:

[(1, 18663904), (2, 9331952), (4, 4665976), (7, 2666272), (8, 2332988), (14, 1333136), (16, 1166494), (28, 666568), (32, 583247), (49, 380896), (56, 333284), (98, 190448), (112, 166642), (196, 95224), (224, 83321), (392, 47612), (784, 23806), (1568, 11903)]