About the Number

81105921

81105920 ← → 81105922

2進数表記:100110101011001010000000001

漢数字表記:八千百十万五千九百二十一

素因数分解:

3 3 × 13 1 × 269 1 × 859 1

素因数の和:1150
約数の個数: 32
約数和(自身を含む): 130032000
約数和(自身を除く): 48926079

約数列:
[1, 3, 9, 13, 27, 39, 117, 269, 351, 807, 859, 2421, 2577, 3497, 7263, 7731, 10491, 11167, 23193, 31473, 33501, 94419, 100503, 231071, 301509, 693213, 2079639, 3003923, 6238917, 9011769, 27035307, 81105921]

約数ペア:
[(1, 81105921), (3, 27035307), (9, 9011769), (13, 6238917), (27, 3003923), (39, 2079639), (117, 693213), (269, 301509), (351, 231071), (807, 100503), (859, 94419), (2421, 33501), (2577, 31473), (3497, 23193), (7263, 11167), (7731, 10491)]

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