About the Number

21122004

21122003 ← → 21122005

2進数表記:1010000100100101111010100

漢数字表記:二千百十二万二千四

素因数分解:

2 2 × 3 1 × 23 1 × 103 1 × 743 1

素因数の和:876
約数の個数: 48
約数和(自身を含む): 51996672
約数和(自身を除く): 30874668

約数列:
[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 103, 138, 206, 276, 309, 412, 618, 743, 1236, 1486, 2229, 2369, 2972, 4458, 4738, 7107, 8916, 9476, 14214, 17089, 28428, 34178, 51267, 68356, 76529, 102534, 153058, 205068, 229587, 306116, 459174, 918348, 1760167, 3520334, 5280501, 7040668, 10561002, 21122004]

約数ペア:
[(1, 21122004), (2, 10561002), (3, 7040668), (4, 5280501), (6, 3520334), (12, 1760167), (23, 918348), (46, 459174), (69, 306116), (92, 229587), (103, 205068), (138, 153058), (206, 102534), (276, 76529), (309, 68356), (412, 51267), (618, 34178), (743, 28428), (1236, 17089), (1486, 14214), (2229, 9476), (2369, 8916), (2972, 7107), (4458, 4738)]

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