21793527

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11159}}^1$

素因数の和:11203

約数の個数: 24

約数和(自身を含む): 37140480

約数和(自身を除く): 15346953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 11159, 33477, 78113, 100431, 234339, 345929, 703017, 1037787, 2421503, 3113361, 7264509, 21793527]

約数ペア:

[(1, 21793527), (3, 7264509), (7, 3113361), (9, 2421503), (21, 1037787), (31, 703017), (63, 345929), (93, 234339), (217, 100431), (279, 78113), (651, 33477), (1953, 11159)]