20764107

素因数分解:

$3^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:351

約数の個数: 56

約数和(自身を含む): 38438624

約数和(自身を除く): 17674517

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 313, 351, 567, 729, 819, 939, 1053, 1701, 2191, 2457, 2817, 3159, 4069, 5103, 6573, 7371, 8451, 9477, 12207, 19719, 22113, 25353, 28483, 36621, 59157, 66339, 76059, 85449, 109863, 177471, 228177, 256347, 329589, 532413, 769041, 988767, 1597239, 2307123, 2966301, 6921369, 20764107]

約数ペア:

[(1, 20764107), (3, 6921369), (7, 2966301), (9, 2307123), (13, 1597239), (21, 988767), (27, 769041), (39, 532413), (63, 329589), (81, 256347), (91, 228177), (117, 177471), (189, 109863), (243, 85449), (273, 76059), (313, 66339), (351, 59157), (567, 36621), (729, 28483), (819, 25353), (939, 22113), (1053, 19719), (1701, 12207), (2191, 9477), (2457, 8451), (2817, 7371), (3159, 6573), (4069, 5103)]