About the Number

21055741

21055740 ← → 21055742

2進数表記:1010000010100100011111101

漢数字表記:二千百五万五千七百四十一

素因数分解:

7 3 × 17 1 × 23 1 × 157 1

素因数の和:218
約数の個数: 32
約数和(自身を含む): 27302400
約数和(自身を除く): 6246659

約数列:
[1, 7, 17, 23, 49, 119, 157, 161, 343, 391, 833, 1099, 1127, 2669, 2737, 3611, 5831, 7693, 7889, 18683, 19159, 25277, 53851, 61387, 130781, 134113, 176939, 429709, 915467, 1238573, 3007963, 21055741]

約数ペア:
[(1, 21055741), (7, 3007963), (17, 1238573), (23, 915467), (49, 429709), (119, 176939), (157, 134113), (161, 130781), (343, 61387), (391, 53851), (833, 25277), (1099, 19159), (1127, 18683), (2669, 7889), (2737, 7693), (3611, 5831)]

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