About the Number

21988500

21988499 ← → 21988501

2進数表記:1010011111000010010010100

漢数字表記:二千百九十八万八千五百

素因数分解:

2 2 × 3 1 × 5 3 × 107 1 × 137 1

素因数の和:266
約数の個数: 96
約数和(自身を含む): 65100672
約数和(自身を除く): 43112172

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 107, 125, 137, 150, 214, 250, 274, 300, 321, 375, 411, 428, 500, 535, 548, 642, 685, 750, 822, 1070, 1284, 1370, 1500, 1605, 1644, 2055, 2140, 2675, 2740, 3210, 3425, 4110, 5350, 6420, 6850, 8025, 8220, 10275, 10700, 13375, 13700, 14659, 16050, 17125, 20550, 26750, 29318, 32100, 34250, 40125, 41100, 43977, 51375, 53500, 58636, 68500, 73295, 80250, 87954, 102750, 146590, 160500, 175908, 205500, 219885, 293180, 366475, 439770, 732950, 879540, 1099425, 1465900, 1832375, 2198850, 3664750, 4397700, 5497125, 7329500, 10994250, 21988500]

約数ペア:
[(1, 21988500), (2, 10994250), (3, 7329500), (4, 5497125), (5, 4397700), (6, 3664750), (10, 2198850), (12, 1832375), (15, 1465900), (20, 1099425), (25, 879540), (30, 732950), (50, 439770), (60, 366475), (75, 293180), (100, 219885), (107, 205500), (125, 175908), (137, 160500), (150, 146590), (214, 102750), (250, 87954), (274, 80250), (300, 73295), (321, 68500), (375, 58636), (411, 53500), (428, 51375), (500, 43977), (535, 41100), (548, 40125), (642, 34250), (685, 32100), (750, 29318), (822, 26750), (1070, 20550), (1284, 17125), (1370, 16050), (1500, 14659), (1605, 13700), (1644, 13375), (2055, 10700), (2140, 10275), (2675, 8220), (2740, 8025), (3210, 6850), (3425, 6420), (4110, 5350)]

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