20078667

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3581}}^1$

素因数の和:3683

約数の個数: 24

約数和(自身を含む): 33527520

約数和(自身を除く): 13448853

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3581, 5607, 10743, 25067, 32229, 75201, 225603, 318709, 956127, 2230963, 2868381, 6692889, 20078667]

約数ペア:

[(1, 20078667), (3, 6692889), (7, 2868381), (9, 2230963), (21, 956127), (63, 318709), (89, 225603), (267, 75201), (623, 32229), (801, 25067), (1869, 10743), (3581, 5607)]