28290879

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{3271}}^1$

素因数の和:3339

約数の個数: 18

約数和(自身を含む): 42238248

約数和(自身を除く): 13947369

約数列:

[1, 3, 9, 31, 93, 279, 961, 2883, 3271, 8649, 9813, 29439, 101401, 304203, 912609, 3143431, 9430293, 28290879]

約数ペア:

[(1, 28290879), (3, 9430293), (9, 3143431), (31, 912609), (93, 304203), (279, 101401), (961, 29439), (2883, 9813), (3271, 8649)]