1887543

素因数分解:

$3^4\times 7^1\times {\mathrm{3329}}^1$

素因数の和:3348

約数の個数: 20

約数和(自身を含む): 3223440

約数和(自身を除く): 1335897

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3329, 9987, 23303, 29961, 69909, 89883, 209727, 269649, 629181, 1887543]

約数ペア:

[(1, 1887543), (3, 629181), (7, 269649), (9, 209727), (21, 89883), (27, 69909), (63, 29961), (81, 23303), (189, 9987), (567, 3329)]