20163405969

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{15307}}^1$

素因数の和:15459

約数の個数: 72

約数和(自身を含む): 35390871360

約数和(自身を除く): 15227465391

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 103, 147, 203, 261, 309, 441, 609, 721, 927, 1421, 1827, 2163, 2987, 4263, 5047, 6489, 8961, 12789, 15141, 15307, 20909, 26883, 45423, 45921, 62727, 107149, 137763, 146363, 188181, 321447, 439089, 443903, 750043, 964341, 1317267, 1331709, 1576621, 2250129, 3107321, 3995127, 4729863, 6750387, 9321963, 11036347, 14189589, 21751247, 27965889, 33109041, 45722009, 65253741, 77254429, 99327123, 137166027, 195761223, 231763287, 320054063, 411498081, 695289861, 960162189, 2240378441, 2880486567, 6721135323, 20163405969]

約数ペア:

[(1, 20163405969), (3, 6721135323), (7, 2880486567), (9, 2240378441), (21, 960162189), (29, 695289861), (49, 411498081), (63, 320054063), (87, 231763287), (103, 195761223), (147, 137166027), (203, 99327123), (261, 77254429), (309, 65253741), (441, 45722009), (609, 33109041), (721, 27965889), (927, 21751247), (1421, 14189589), (1827, 11036347), (2163, 9321963), (2987, 6750387), (4263, 4729863), (5047, 3995127), (6489, 3107321), (8961, 2250129), (12789, 1576621), (15141, 1331709), (15307, 1317267), (20909, 964341), (26883, 750043), (45423, 443903), (45921, 439089), (62727, 321447), (107149, 188181), (137763, 146363)]