28571571

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3571}}^1$

素因数の和:3711

約数の個数: 24

約数和(自身を含む): 47550464

約数和(自身を除く): 18978893

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 3571, 8001, 10713, 24997, 32139, 74991, 224973, 453517, 1360551, 3174619, 4081653, 9523857, 28571571]

約数ペア:

[(1, 28571571), (3, 9523857), (7, 4081653), (9, 3174619), (21, 1360551), (63, 453517), (127, 224973), (381, 74991), (889, 32139), (1143, 24997), (2667, 10713), (3571, 8001)]