28778827

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{499}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 36936000

約数和(自身を除く): 8157173

約数列:

[1, 7, 11, 49, 77, 107, 499, 539, 749, 1177, 3493, 5243, 5489, 8239, 24451, 38423, 53393, 57673, 268961, 373751, 587323, 2616257, 4111261, 28778827]

約数ペア:

[(1, 28778827), (7, 4111261), (11, 2616257), (49, 587323), (77, 373751), (107, 268961), (499, 57673), (539, 53393), (749, 38423), (1177, 24451), (3493, 8239), (5243, 5489)]