28671357

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 46484928

約数和(自身を除く): 17813571

約数列:

[1, 3, 11, 13, 33, 39, 53, 97, 143, 159, 169, 291, 429, 507, 583, 689, 1067, 1261, 1749, 1859, 2067, 3201, 3783, 5141, 5577, 7579, 8957, 13871, 15423, 16393, 22737, 26871, 41613, 49179, 56551, 66833, 98527, 169653, 180323, 200499, 295581, 540969, 735163, 868829, 2205489, 2606487, 9557119, 28671357]

約数ペア:

[(1, 28671357), (3, 9557119), (11, 2606487), (13, 2205489), (33, 868829), (39, 735163), (53, 540969), (97, 295581), (143, 200499), (159, 180323), (169, 169653), (291, 98527), (429, 66833), (507, 56551), (583, 49179), (689, 41613), (1067, 26871), (1261, 22737), (1749, 16393), (1859, 15423), (2067, 13871), (3201, 8957), (3783, 7579), (5141, 5577)]