18678804963

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{6577}}^1$

素因数の和:6804

約数の個数: 64

約数和(自身を含む): 31261181952

約数和(自身を除く): 12582376989

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 103, 273, 303, 309, 707, 721, 1313, 1339, 2121, 2163, 3939, 4017, 6577, 9191, 9373, 10403, 19731, 27573, 28119, 31209, 46039, 72821, 85501, 135239, 138117, 218463, 256503, 405717, 598507, 664277, 677431, 946673, 1795521, 1992831, 2032293, 2840019, 4649939, 4742017, 8635601, 8806603, 13949817, 14226051, 25906803, 26419809, 60449207, 61646221, 68420531, 181347621, 184938663, 205261593, 478943717, 889466903, 1436831151, 2668400709, 6226268321, 18678804963]

約数ペア:

[(1, 18678804963), (3, 6226268321), (7, 2668400709), (13, 1436831151), (21, 889466903), (39, 478943717), (91, 205261593), (101, 184938663), (103, 181347621), (273, 68420531), (303, 61646221), (309, 60449207), (707, 26419809), (721, 25906803), (1313, 14226051), (1339, 13949817), (2121, 8806603), (2163, 8635601), (3939, 4742017), (4017, 4649939), (6577, 2840019), (9191, 2032293), (9373, 1992831), (10403, 1795521), (19731, 946673), (27573, 677431), (28119, 664277), (31209, 598507), (46039, 405717), (72821, 256503), (85501, 218463), (135239, 138117)]