28107009

素因数分解:

$3^2\times 7^1\times {\mathrm{659}}^1\times {\mathrm{677}}^1$

素因数の和:1349

約数の個数: 24

約数和(自身を含む): 46537920

約数和(自身を除く): 18430911

約数列:

[1, 3, 7, 9, 21, 63, 659, 677, 1977, 2031, 4613, 4739, 5931, 6093, 13839, 14217, 41517, 42651, 446143, 1338429, 3123001, 4015287, 9369003, 28107009]

約数ペア:

[(1, 28107009), (3, 9369003), (7, 4015287), (9, 3123001), (21, 1338429), (63, 446143), (659, 42651), (677, 41517), (1977, 14217), (2031, 13839), (4613, 6093), (4739, 5931)]