28804041

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1913}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 47773440

約数和(自身を除く): 18969399

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 1913, 2151, 5019, 5739, 13391, 15057, 17217, 40173, 120519, 457207, 1371621, 3200449, 4114863, 9601347, 28804041]

約数ペア:

[(1, 28804041), (3, 9601347), (7, 4114863), (9, 3200449), (21, 1371621), (63, 457207), (239, 120519), (717, 40173), (1673, 17217), (1913, 15057), (2151, 13391), (5019, 5739)]