18645471

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17707}}^1$

素因数の和:17732

約数の個数: 20

約数和(自身を含む): 29997352

約数和(自身を除く): 11351881

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17707, 53121, 159363, 230191, 478089, 690573, 1434267, 2071719, 6215157, 18645471]

約数ペア:

[(1, 18645471), (3, 6215157), (9, 2071719), (13, 1434267), (27, 690573), (39, 478089), (81, 230191), (117, 159363), (351, 53121), (1053, 17707)]