21089619

素因数分解:

$3^3\times {\mathrm{347}}^1\times {\mathrm{2251}}^1$

素因数の和:2607

約数の個数: 16

約数和(自身を含む): 31347840

約数和(自身を除く): 10258221

約数列:

[1, 3, 9, 27, 347, 1041, 2251, 3123, 6753, 9369, 20259, 60777, 781097, 2343291, 7029873, 21089619]

約数ペア:

[(1, 21089619), (3, 7029873), (9, 2343291), (27, 781097), (347, 60777), (1041, 20259), (2251, 9369), (3123, 6753)]