20276991

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4409}}^1$

素因数の和:4495

約数の個数: 24

約数和(自身を含む): 33939360

約数和(自身を除く): 13662369

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4409, 4599, 13227, 30863, 39681, 92589, 277767, 321857, 965571, 2252999, 2896713, 6758997, 20276991]

約数ペア:

[(1, 20276991), (3, 6758997), (7, 2896713), (9, 2252999), (21, 965571), (63, 321857), (73, 277767), (219, 92589), (511, 39681), (657, 30863), (1533, 13227), (4409, 4599)]