19978588

素因数分解:

$2^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{3697}}^1$

素因数の和:3901

約数の個数: 24

約数和(自身を含む): 40175072

約数和(自身を除く): 20196484

約数列:

[1, 2, 4, 7, 14, 28, 193, 386, 772, 1351, 2702, 3697, 5404, 7394, 14788, 25879, 51758, 103516, 713521, 1427042, 2854084, 4994647, 9989294, 19978588]

約数ペア:

[(1, 19978588), (2, 9989294), (4, 4994647), (7, 2854084), (14, 1427042), (28, 713521), (193, 103516), (386, 51758), (772, 25879), (1351, 14788), (2702, 7394), (3697, 5404)]