209570907

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 360622080

約数和(自身を除く): 151051173

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 103, 203, 257, 273, 309, 377, 609, 721, 771, 1131, 1339, 1799, 2163, 2639, 2987, 3341, 4017, 5397, 7453, 7917, 8961, 9373, 10023, 20909, 22359, 23387, 26471, 28119, 38831, 52171, 62727, 70161, 79413, 96889, 116493, 156513, 185297, 271817, 290667, 344123, 555891, 678223, 767659, 815451, 1032369, 2034669, 2302977, 2408861, 5373613, 7226583, 9979567, 16120839, 29938701, 69856969, 209570907]

約数ペア:

[(1, 209570907), (3, 69856969), (7, 29938701), (13, 16120839), (21, 9979567), (29, 7226583), (39, 5373613), (87, 2408861), (91, 2302977), (103, 2034669), (203, 1032369), (257, 815451), (273, 767659), (309, 678223), (377, 555891), (609, 344123), (721, 290667), (771, 271817), (1131, 185297), (1339, 156513), (1799, 116493), (2163, 96889), (2639, 79413), (2987, 70161), (3341, 62727), (4017, 52171), (5397, 38831), (7453, 28119), (7917, 26471), (8961, 23387), (9373, 22359), (10023, 20909)]