About the Number

81192007

81192006 ← → 81192008

2進数表記:100110101101110010001000111

漢数字表記:八千百十九万二千七

素因数分解:

13 1 × 31 2 × 67 1 × 97 1

素因数の和:239
約数の個数: 24
約数和(自身を含む): 92642928
約数和(自身を除く): 11450921

約数列:
[1, 13, 31, 67, 97, 403, 871, 961, 1261, 2077, 3007, 6499, 12493, 27001, 39091, 64387, 84487, 93217, 201469, 837031, 1211821, 2619097, 6245539, 81192007]

約数ペア:
[(1, 81192007), (13, 6245539), (31, 2619097), (67, 1211821), (97, 837031), (403, 201469), (871, 93217), (961, 84487), (1261, 64387), (2077, 39091), (3007, 27001), (6499, 12493)]

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