About the Number

9781428

9781427 ← → 9781429

2進数表記:100101010100000010110100

漢数字表記:九百七十八万千四百二十八

素因数分解:

2 2 × 3 1 × 19 1 × 42901 1

素因数の和:42927
約数の個数: 24
約数和(自身を含む): 24025120
約数和(自身を除く): 14243692

約数列:
[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 42901, 85802, 128703, 171604, 257406, 514812, 815119, 1630238, 2445357, 3260476, 4890714, 9781428]

約数ペア:
[(1, 9781428), (2, 4890714), (3, 3260476), (4, 2445357), (6, 1630238), (12, 815119), (19, 514812), (38, 257406), (57, 171604), (76, 128703), (114, 85802), (228, 42901)]

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