28517931

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3433}}^1$

素因数の和:3523

約数の個数: 24

約数和(自身を含む): 44999136

約数和(自身を除く): 16481205

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 3433, 8307, 10299, 30897, 44629, 133887, 243743, 401661, 731229, 2193687, 3168659, 9505977, 28517931]

約数ペア:

[(1, 28517931), (3, 9505977), (9, 3168659), (13, 2193687), (39, 731229), (71, 401661), (117, 243743), (213, 133887), (639, 44629), (923, 30897), (2769, 10299), (3433, 8307)]