28116855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{433}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 55413120

約数和(自身を除く): 27296265

約数列:

[1, 3, 5, 9, 13, 15, 27, 37, 39, 45, 65, 111, 117, 135, 185, 195, 333, 351, 433, 481, 555, 585, 999, 1299, 1443, 1665, 1755, 2165, 2405, 3897, 4329, 4995, 5629, 6495, 7215, 11691, 12987, 16021, 16887, 19485, 21645, 28145, 48063, 50661, 58455, 64935, 80105, 84435, 144189, 151983, 208273, 240315, 253305, 432567, 624819, 720945, 759915, 1041365, 1874457, 2162835, 3124095, 5623371, 9372285, 28116855]

約数ペア:

[(1, 28116855), (3, 9372285), (5, 5623371), (9, 3124095), (13, 2162835), (15, 1874457), (27, 1041365), (37, 759915), (39, 720945), (45, 624819), (65, 432567), (111, 253305), (117, 240315), (135, 208273), (185, 151983), (195, 144189), (333, 84435), (351, 80105), (433, 64935), (481, 58455), (555, 50661), (585, 48063), (999, 28145), (1299, 21645), (1443, 19485), (1665, 16887), (1755, 16021), (2165, 12987), (2405, 11691), (3897, 7215), (4329, 6495), (4995, 5629)]