About the Number

201890018

201890017 ← → 201890019

2進数表記:1100000010001001100011100010

漢数字表記:二億百八十九万十八

素因数分解:

2 1 × 11 1 × 109 1 × 84191 1

素因数の和:84313
約数の個数: 16
約数和(自身を含む): 333400320
約数和(自身を除く): 131510302

約数列:
[1, 2, 11, 22, 109, 218, 1199, 2398, 84191, 168382, 926101, 1852202, 9176819, 18353638, 100945009, 201890018]

約数ペア:
[(1, 201890018), (2, 100945009), (11, 18353638), (22, 9176819), (109, 1852202), (218, 926101), (1199, 168382), (2398, 84191)]

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