About the Number

20428394

20428393 ← → 20428395

2進数表記:1001101111011011001101010

漢数字表記:二千四十二万八千三百九十四

素因数分解:

2 1 × 7 3 × 97 1 × 307 1

素因数の和:427
約数の個数: 32
約数和(自身を含む): 36220800
約数和(自身を除く): 15792406

約数列:
[1, 2, 7, 14, 49, 97, 98, 194, 307, 343, 614, 679, 686, 1358, 2149, 4298, 4753, 9506, 15043, 29779, 30086, 33271, 59558, 66542, 105301, 208453, 210602, 416906, 1459171, 2918342, 10214197, 20428394]

約数ペア:
[(1, 20428394), (2, 10214197), (7, 2918342), (14, 1459171), (49, 416906), (97, 210602), (98, 208453), (194, 105301), (307, 66542), (343, 59558), (614, 33271), (679, 30086), (686, 29779), (1358, 15043), (2149, 9506), (4298, 4753)]

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