About the Number

81081273

81081272 ← → 81081274

2進数表記:100110101010011001110111001

漢数字表記:八千百八万千二百七十三

素因数分解:

3 1 × 7 1 × 13 1 × 43 1 × 6907 1

素因数の和:6973
約数の個数: 32
約数和(自身を含む): 136170496
約数和(自身を除く): 55089223

約数列:
[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 3913, 6907, 11739, 20721, 48349, 89791, 145047, 269373, 297001, 628537, 891003, 1885611, 2079007, 3861013, 6237021, 11583039, 27027091, 81081273]

約数ペア:
[(1, 81081273), (3, 27027091), (7, 11583039), (13, 6237021), (21, 3861013), (39, 2079007), (43, 1885611), (91, 891003), (129, 628537), (273, 297001), (301, 269373), (559, 145047), (903, 89791), (1677, 48349), (3913, 20721), (6907, 11739)]

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