About the Number

21431270

21431269 ← → 21431271

2進数表記:1010001110000001111100110

漢数字表記:二千百四十三万千二百七十

素因数分解:

2 1 × 5 1 × 7 1 × 211 1 × 1451 1

素因数の和:1676
約数の個数: 32
約数和(自身を含む): 44326656
約数和(自身を除く): 22895386

約数列:
[1, 2, 5, 7, 10, 14, 35, 70, 211, 422, 1055, 1451, 1477, 2110, 2902, 2954, 7255, 7385, 10157, 14510, 14770, 20314, 50785, 101570, 306161, 612322, 1530805, 2143127, 3061610, 4286254, 10715635, 21431270]

約数ペア:
[(1, 21431270), (2, 10715635), (5, 4286254), (7, 3061610), (10, 2143127), (14, 1530805), (35, 612322), (70, 306161), (211, 101570), (422, 50785), (1055, 20314), (1451, 14770), (1477, 14510), (2110, 10157), (2902, 7385), (2954, 7255)]

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