19896016

素因数分解:

$2^4\times 7^1\times {\mathrm{401}}^1\times {\mathrm{443}}^1$

素因数の和:859

約数の個数: 40

約数和(自身を含む): 44265024

約数和(自身を除く): 24369008

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 401, 443, 802, 886, 1604, 1772, 2807, 3101, 3208, 3544, 5614, 6202, 6416, 7088, 11228, 12404, 22456, 24808, 44912, 49616, 177643, 355286, 710572, 1243501, 1421144, 2487002, 2842288, 4974004, 9948008, 19896016]

約数ペア:

[(1, 19896016), (2, 9948008), (4, 4974004), (7, 2842288), (8, 2487002), (14, 1421144), (16, 1243501), (28, 710572), (56, 355286), (112, 177643), (401, 49616), (443, 44912), (802, 24808), (886, 22456), (1604, 12404), (1772, 11228), (2807, 7088), (3101, 6416), (3208, 6202), (3544, 5614)]