About the Number

209121129

209121128 ← → 209121130

2進数表記:1100011101101110111101101001

漢数字表記:二億九百十二万千百二十九

素因数分解:

3 3 × 7 1 × 23 1 × 73 1 × 659 1

素因数の和:771
約数の個数: 64
約数和(自身を含む): 375091200
約数和(自身を除く): 165970071

約数列:
[1, 3, 7, 9, 21, 23, 27, 63, 69, 73, 161, 189, 207, 219, 483, 511, 621, 657, 659, 1449, 1533, 1679, 1971, 1977, 4347, 4599, 4613, 5037, 5931, 11753, 13797, 13839, 15111, 15157, 17793, 35259, 41517, 45333, 45471, 48107, 105777, 106099, 124551, 136413, 144321, 317331, 318297, 336749, 409239, 432963, 954891, 1010247, 1106461, 1298889, 2864673, 3030741, 3319383, 7745227, 9092223, 9958149, 23235681, 29874447, 69707043, 209121129]

約数ペア:
[(1, 209121129), (3, 69707043), (7, 29874447), (9, 23235681), (21, 9958149), (23, 9092223), (27, 7745227), (63, 3319383), (69, 3030741), (73, 2864673), (161, 1298889), (189, 1106461), (207, 1010247), (219, 954891), (483, 432963), (511, 409239), (621, 336749), (657, 318297), (659, 317331), (1449, 144321), (1533, 136413), (1679, 124551), (1971, 106099), (1977, 105777), (4347, 48107), (4599, 45471), (4613, 45333), (5037, 41517), (5931, 35259), (11753, 17793), (13797, 15157), (13839, 15111)]

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