19996785

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3499}}^1$

素因数の和:3637

約数の個数: 24

約数和(自身を含む): 34944000

約数和(自身を除く): 14947215

約数列:

[1, 3, 5, 9, 15, 45, 127, 381, 635, 1143, 1905, 3499, 5715, 10497, 17495, 31491, 52485, 157455, 444373, 1333119, 2221865, 3999357, 6665595, 19996785]

約数ペア:

[(1, 19996785), (3, 6665595), (5, 3999357), (9, 2221865), (15, 1333119), (45, 444373), (127, 157455), (381, 52485), (635, 31491), (1143, 17495), (1905, 10497), (3499, 5715)]