12890997

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2803}}^1$

素因数の和:2889

約数の個数: 24

約数和(自身を含む): 21579584

約数和(自身を除く): 8688587

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 2803, 4599, 8409, 19621, 25227, 58863, 176589, 204619, 613857, 1432333, 1841571, 4296999, 12890997]

約数ペア:

[(1, 12890997), (3, 4296999), (7, 1841571), (9, 1432333), (21, 613857), (63, 204619), (73, 176589), (219, 58863), (511, 25227), (657, 19621), (1533, 8409), (2803, 4599)]