About the Number

21013047

21013046 ← → 21013048

2進数表記:1010000001010001000110111

漢数字表記:二千百一万三千四十七

素因数分解:

3 3 × 11 1 × 139 1 × 509 1

素因数の和:668
約数の個数: 32
約数和(自身を含む): 34272000
約数和(自身を除く): 13258953

約数列:
[1, 3, 9, 11, 27, 33, 99, 139, 297, 417, 509, 1251, 1527, 1529, 3753, 4581, 4587, 5599, 13743, 13761, 16797, 41283, 50391, 70751, 151173, 212253, 636759, 778261, 1910277, 2334783, 7004349, 21013047]

約数ペア:
[(1, 21013047), (3, 7004349), (9, 2334783), (11, 1910277), (27, 778261), (33, 636759), (99, 212253), (139, 151173), (297, 70751), (417, 50391), (509, 41283), (1251, 16797), (1527, 13761), (1529, 13743), (3753, 5599), (4581, 4587)]

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