20686041

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{883}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 31717920

約数和(自身を除く): 11031879

約数列:

[1, 3, 9, 19, 57, 137, 171, 411, 883, 1233, 2603, 2649, 7809, 7947, 16777, 23427, 50331, 120971, 150993, 362913, 1088739, 2298449, 6895347, 20686041]

約数ペア:

[(1, 20686041), (3, 6895347), (9, 2298449), (19, 1088739), (57, 362913), (137, 150993), (171, 120971), (411, 50331), (883, 23427), (1233, 16777), (2603, 7947), (2649, 7809)]