249969321

素因数分解:

$3^4\times 7^1\times {\mathrm{440863}}^1$

素因数の和:440882

約数の個数: 20

約数和(自身を含む): 426756352

約数和(自身を除く): 176787031

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 440863, 1322589, 3086041, 3967767, 9258123, 11903301, 27774369, 35709903, 83323107, 249969321]

約数ペア:

[(1, 249969321), (3, 83323107), (7, 35709903), (9, 27774369), (21, 11903301), (27, 9258123), (63, 3967767), (81, 3086041), (189, 1322589), (567, 440863)]