15997257

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{4817}}^1$

素因数の和:4870

約数の個数: 20

約数和(自身を含む): 24485076

約数和(自身を除く): 8487819

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 4817, 14451, 43353, 130059, 197497, 390177, 592491, 1777473, 5332419, 15997257]

約数ペア:

[(1, 15997257), (3, 5332419), (9, 1777473), (27, 592491), (41, 390177), (81, 197497), (123, 130059), (369, 43353), (1107, 14451), (3321, 4817)]