18877868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1787}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 35044800

約数和(自身を除く): 16166932

約数列:

[1, 2, 4, 19, 38, 76, 139, 278, 556, 1787, 2641, 3574, 5282, 7148, 10564, 33953, 67906, 135812, 248393, 496786, 993572, 4719467, 9438934, 18877868]

約数ペア:

[(1, 18877868), (2, 9438934), (4, 4719467), (19, 993572), (38, 496786), (76, 248393), (139, 135812), (278, 67906), (556, 33953), (1787, 10564), (2641, 7148), (3574, 5282)]