About the Number

21315710

21315709 ← → 21315711

2進数表記:1010001010100000001111110

漢数字表記:二千百三十一万五千七百十

素因数分解:

2 1 × 5 1 × 13 1 × 23 1 × 7129 1

素因数の和:7172
約数の個数: 32
約数和(自身を含む): 43122240
約数和(自身を除く): 21806530

約数列:
[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 7129, 14258, 35645, 71290, 92677, 163967, 185354, 327934, 463385, 819835, 926770, 1639670, 2131571, 4263142, 10657855, 21315710]

約数ペア:
[(1, 21315710), (2, 10657855), (5, 4263142), (10, 2131571), (13, 1639670), (23, 926770), (26, 819835), (46, 463385), (65, 327934), (115, 185354), (130, 163967), (230, 92677), (299, 71290), (598, 35645), (1495, 14258), (2990, 7129)]

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