19992975

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2099}}^1$

素因数の和:2239

約数の個数: 24

約数和(自身を含む): 33331200

約数和(自身を除く): 13338225

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2099, 3175, 6297, 9525, 10495, 31485, 52475, 157425, 266573, 799719, 1332865, 3998595, 6664325, 19992975]

約数ペア:

[(1, 19992975), (3, 6664325), (5, 3998595), (15, 1332865), (25, 799719), (75, 266573), (127, 157425), (381, 52475), (635, 31485), (1905, 10495), (2099, 9525), (3175, 6297)]