About the Number

2009721906

2009721905 ← → 2009721907

2進数表記:1110111110010011110110000110010

漢数字表記:二十億九百七十二万千九百六

素因数分解:

2 1 × 3 2 × 2767 1 × 40351 1

素因数の和:43126
約数の個数: 24
約数和(自身を含む): 4356079104
約数和(自身を除く): 2346357198

約数列:
[1, 2, 3, 6, 9, 18, 2767, 5534, 8301, 16602, 24903, 40351, 49806, 80702, 121053, 242106, 363159, 726318, 111651217, 223302434, 334953651, 669907302, 1004860953, 2009721906]

約数ペア:
[(1, 2009721906), (2, 1004860953), (3, 669907302), (6, 334953651), (9, 223302434), (18, 111651217), (2767, 726318), (5534, 363159), (8301, 242106), (16602, 121053), (24903, 80702), (40351, 49806)]

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