20606859

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8387}}^1$

素因数の和:8416

約数の個数: 32

約数和(自身を含む): 37578240

約数和(自身を除く): 16971381

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8387, 25161, 58709, 75483, 109031, 176127, 226449, 327093, 528381, 763217, 981279, 1585143, 2289651, 2943837, 6868953, 20606859]

約数ペア:

[(1, 20606859), (3, 6868953), (7, 2943837), (9, 2289651), (13, 1585143), (21, 981279), (27, 763217), (39, 528381), (63, 327093), (91, 226449), (117, 176127), (189, 109031), (273, 75483), (351, 58709), (819, 25161), (2457, 8387)]