About the Number

21210

21209 ← → 21211

2進数表記:101001011011010

漢数字表記:二万千二百十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 101 1

素因数の和:118
約数の個数: 32
約数和(自身を含む): 58752
約数和(自身を除く): 37542

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 101, 105, 202, 210, 303, 505, 606, 707, 1010, 1414, 1515, 2121, 3030, 3535, 4242, 7070, 10605, 21210]

約数ペア:
[(1, 21210), (2, 10605), (3, 7070), (5, 4242), (6, 3535), (7, 3030), (10, 2121), (14, 1515), (15, 1414), (21, 1010), (30, 707), (35, 606), (42, 505), (70, 303), (101, 210), (105, 202)]

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