About the Number

21002590

21002589 ← → 21002591

2進数表記:1010000000111100101011110

漢数字表記:二千百万二千五百九十

素因数分解:

2 1 × 5 1 × 7 1 × 151 1 × 1987 1

素因数の和:2152
約数の個数: 32
約数和(自身を含む): 43513344
約数和(自身を除く): 22510754

約数列:
[1, 2, 5, 7, 10, 14, 35, 70, 151, 302, 755, 1057, 1510, 1987, 2114, 3974, 5285, 9935, 10570, 13909, 19870, 27818, 69545, 139090, 300037, 600074, 1500185, 2100259, 3000370, 4200518, 10501295, 21002590]

約数ペア:
[(1, 21002590), (2, 10501295), (5, 4200518), (7, 3000370), (10, 2100259), (14, 1500185), (35, 600074), (70, 300037), (151, 139090), (302, 69545), (755, 27818), (1057, 19870), (1510, 13909), (1987, 10570), (2114, 9935), (3974, 5285)]

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