28287945

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{12829}}^1$

素因数の和:12854

約数の個数: 36

約数和(自身を含む): 57042180

約数和(自身を除く): 28754235

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 12829, 38487, 64145, 89803, 115461, 192435, 269409, 449015, 577305, 628621, 808227, 1347045, 1885863, 3143105, 4041135, 5657589, 9429315, 28287945]

約数ペア:

[(1, 28287945), (3, 9429315), (5, 5657589), (7, 4041135), (9, 3143105), (15, 1885863), (21, 1347045), (35, 808227), (45, 628621), (49, 577305), (63, 449015), (105, 269409), (147, 192435), (245, 115461), (315, 89803), (441, 64145), (735, 38487), (2205, 12829)]