28805139

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{2939}}^1$

素因数の和:2973

約数の個数: 30

約数和(自身を含む): 47313420

約数和(自身を除く): 18508281

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 297, 363, 891, 1089, 2939, 3267, 8817, 9801, 26451, 32329, 79353, 96987, 238059, 290961, 355619, 872883, 1066857, 2618649, 3200571, 9601713, 28805139]

約数ペア:

[(1, 28805139), (3, 9601713), (9, 3200571), (11, 2618649), (27, 1066857), (33, 872883), (81, 355619), (99, 290961), (121, 238059), (297, 96987), (363, 79353), (891, 32329), (1089, 26451), (2939, 9801), (3267, 8817)]