21965716

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{769}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 39735080

約数和(自身を除く): 17769364

約数列:

[1, 2, 4, 37, 74, 148, 193, 386, 769, 772, 1538, 3076, 7141, 14282, 28453, 28564, 56906, 113812, 148417, 296834, 593668, 5491429, 10982858, 21965716]

約数ペア:

[(1, 21965716), (2, 10982858), (4, 5491429), (37, 593668), (74, 296834), (148, 148417), (193, 113812), (386, 56906), (769, 28564), (772, 28453), (1538, 14282), (3076, 7141)]