16982889

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 29008896

約数和(自身を除く): 12026007

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 1987, 2849, 5961, 8547, 13909, 21857, 41727, 65571, 73519, 152999, 220557, 458997, 514633, 808709, 1543899, 2426127, 5660963, 16982889]

約数ペア:

[(1, 16982889), (3, 5660963), (7, 2426127), (11, 1543899), (21, 808709), (33, 514633), (37, 458997), (77, 220557), (111, 152999), (231, 73519), (259, 65571), (407, 41727), (777, 21857), (1221, 13909), (1987, 8547), (2849, 5961)]