28211799

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 48591360

約数和(自身を除く): 20379561

約数列:

[1, 3, 7, 11, 21, 33, 49, 73, 77, 147, 219, 231, 239, 511, 539, 717, 803, 1533, 1617, 1673, 2409, 2629, 3577, 5019, 5621, 7887, 10731, 11711, 16863, 17447, 18403, 35133, 39347, 52341, 55209, 118041, 122129, 128821, 191917, 366387, 386463, 575751, 854903, 1343419, 2564709, 4030257, 9403933, 28211799]

約数ペア:

[(1, 28211799), (3, 9403933), (7, 4030257), (11, 2564709), (21, 1343419), (33, 854903), (49, 575751), (73, 386463), (77, 366387), (147, 191917), (219, 128821), (231, 122129), (239, 118041), (511, 55209), (539, 52341), (717, 39347), (803, 35133), (1533, 18403), (1617, 17447), (1673, 16863), (2409, 11711), (2629, 10731), (3577, 7887), (5019, 5621)]