28471401

素因数分解:

$3^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 50169600

約数和(自身を除く): 21698199

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 343, 401, 441, 483, 1029, 1127, 1203, 1449, 2807, 3087, 3381, 3609, 7889, 8421, 9223, 10143, 19649, 23667, 25263, 27669, 58947, 64561, 71001, 83007, 137543, 176841, 193683, 412629, 451927, 581049, 1237887, 1355781, 3163489, 4067343, 9490467, 28471401]

約数ペア:

[(1, 28471401), (3, 9490467), (7, 4067343), (9, 3163489), (21, 1355781), (23, 1237887), (49, 581049), (63, 451927), (69, 412629), (147, 193683), (161, 176841), (207, 137543), (343, 83007), (401, 71001), (441, 64561), (483, 58947), (1029, 27669), (1127, 25263), (1203, 23667), (1449, 19649), (2807, 10143), (3087, 9223), (3381, 8421), (3609, 7889)]