21080046

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{20789}}^1$

素因数の和:20820

約数の個数: 24

約数和(自身を含む): 45654840

約数和(自身を除く): 24574794

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 1014, 20789, 41578, 62367, 124734, 270257, 540514, 810771, 1621542, 3513341, 7026682, 10540023, 21080046]

約数ペア:

[(1, 21080046), (2, 10540023), (3, 7026682), (6, 3513341), (13, 1621542), (26, 810771), (39, 540514), (78, 270257), (169, 124734), (338, 62367), (507, 41578), (1014, 20789)]