About the Number

21471065

21471064 ← → 21471066

2進数表記:1010001111001111101011001

漢数字表記:二千百四十七万千六十五

素因数分解:

5 1 × 7 2 × 11 1 × 31 1 × 257 1

素因数の和:318
約数の個数: 48
約数和(自身を含む): 33882624
約数和(自身を除く): 12411559

約数列:
[1, 5, 7, 11, 31, 35, 49, 55, 77, 155, 217, 245, 257, 341, 385, 539, 1085, 1285, 1519, 1705, 1799, 2387, 2695, 2827, 7595, 7967, 8995, 11935, 12593, 14135, 16709, 19789, 39835, 55769, 62965, 83545, 87637, 98945, 138523, 278845, 390383, 438185, 613459, 692615, 1951915, 3067295, 4294213, 21471065]

約数ペア:
[(1, 21471065), (5, 4294213), (7, 3067295), (11, 1951915), (31, 692615), (35, 613459), (49, 438185), (55, 390383), (77, 278845), (155, 138523), (217, 98945), (245, 87637), (257, 83545), (341, 62965), (385, 55769), (539, 39835), (1085, 19789), (1285, 16709), (1519, 14135), (1705, 12593), (1799, 11935), (2387, 8995), (2695, 7967), (2827, 7595)]

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