About the Number

21351640

21351639 ← → 21351641

2進数表記:1010001011100110011011000

漢数字表記:二千百三十五万千六百四十

素因数分解:

2 3 × 5 1 × 97 1 × 5503 1

素因数の和:5611
約数の個数: 32
約数和(自身を含む): 48545280
約数和(自身を除く): 27193640

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5503, 11006, 22012, 27515, 44024, 55030, 110060, 220120, 533791, 1067582, 2135164, 2668955, 4270328, 5337910, 10675820, 21351640]

約数ペア:
[(1, 21351640), (2, 10675820), (4, 5337910), (5, 4270328), (8, 2668955), (10, 2135164), (20, 1067582), (40, 533791), (97, 220120), (194, 110060), (388, 55030), (485, 44024), (776, 27515), (970, 22012), (1940, 11006), (3880, 5503)]

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