About the Number

21123076

21123075 ← → 21123077

2進数表記:1010000100101000000000100

漢数字表記:二千百十二万三千七十六

素因数分解:

2 2 × 13 1 × 401 1 × 1013 1

素因数の和:1431
約数の個数: 24
約数和(自身を含む): 39947544
約数和(自身を除く): 18824468

約数列:
[1, 2, 4, 13, 26, 52, 401, 802, 1013, 1604, 2026, 4052, 5213, 10426, 13169, 20852, 26338, 52676, 406213, 812426, 1624852, 5280769, 10561538, 21123076]

約数ペア:
[(1, 21123076), (2, 10561538), (4, 5280769), (13, 1624852), (26, 812426), (52, 406213), (401, 52676), (802, 26338), (1013, 20852), (1604, 13169), (2026, 10426), (4052, 5213)]

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