About the Number

21556795

21556794 ← → 21556796

2進数表記:1010010001110111000111011

漢数字表記:二千百五十五万六千七百九十五

素因数分解:

5 1 × 13 2 × 97 1 × 263 1

素因数の和:391
約数の個数: 24
約数和(自身を含む): 28407456
約数和(自身を除く): 6850661

約数列:
[1, 5, 13, 65, 97, 169, 263, 485, 845, 1261, 1315, 3419, 6305, 16393, 17095, 25511, 44447, 81965, 127555, 222235, 331643, 1658215, 4311359, 21556795]

約数ペア:
[(1, 21556795), (5, 4311359), (13, 1658215), (65, 331643), (97, 222235), (169, 127555), (263, 81965), (485, 44447), (845, 25511), (1261, 17095), (1315, 16393), (3419, 6305)]

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