28213713

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{547}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 44624736

約数和(自身を除く): 16411023

約数列:

[1, 3, 9, 11, 33, 99, 521, 547, 1563, 1641, 4689, 4923, 5731, 6017, 17193, 18051, 51579, 54153, 284987, 854961, 2564883, 3134857, 9404571, 28213713]

約数ペア:

[(1, 28213713), (3, 9404571), (9, 3134857), (11, 2564883), (33, 854961), (99, 284987), (521, 54153), (547, 51579), (1563, 18051), (1641, 17193), (4689, 6017), (4923, 5731)]