About the Number

21604275

21604274 ← → 21604276

2進数表記:1010010011010011110110011

漢数字表記:二千百六十万四千二百七十五

素因数分解:

3 2 × 5 2 × 7 1 × 11 1 × 29 1 × 43 1

素因数の和:106
約数の個数: 144
約数和(自身を含む): 51068160
約数和(自身を除く): 29463885

約数列:
[1, 3, 5, 7, 9, 11, 15, 21, 25, 29, 33, 35, 43, 45, 55, 63, 75, 77, 87, 99, 105, 129, 145, 165, 175, 203, 215, 225, 231, 261, 275, 301, 315, 319, 385, 387, 435, 473, 495, 525, 609, 645, 693, 725, 825, 903, 957, 1015, 1075, 1155, 1247, 1305, 1419, 1505, 1575, 1595, 1827, 1925, 1935, 2175, 2233, 2365, 2475, 2709, 2871, 3045, 3225, 3311, 3465, 3741, 4257, 4515, 4785, 5075, 5775, 6235, 6525, 6699, 7095, 7525, 7975, 8729, 9135, 9675, 9933, 11165, 11223, 11825, 13545, 13717, 14355, 15225, 16555, 17325, 18705, 20097, 21285, 22575, 23925, 26187, 29799, 31175, 33495, 35475, 41151, 43645, 45675, 49665, 55825, 56115, 67725, 68585, 71775, 78561, 82775, 93525, 96019, 100485, 106425, 123453, 130935, 148995, 167475, 205755, 218225, 248325, 280575, 288057, 342925, 392805, 480095, 502425, 617265, 654675, 744975, 864171, 1028775, 1440285, 1964025, 2400475, 3086325, 4320855, 7201425, 21604275]

約数ペア:
[(1, 21604275), (3, 7201425), (5, 4320855), (7, 3086325), (9, 2400475), (11, 1964025), (15, 1440285), (21, 1028775), (25, 864171), (29, 744975), (33, 654675), (35, 617265), (43, 502425), (45, 480095), (55, 392805), (63, 342925), (75, 288057), (77, 280575), (87, 248325), (99, 218225), (105, 205755), (129, 167475), (145, 148995), (165, 130935), (175, 123453), (203, 106425), (215, 100485), (225, 96019), (231, 93525), (261, 82775), (275, 78561), (301, 71775), (315, 68585), (319, 67725), (385, 56115), (387, 55825), (435, 49665), (473, 45675), (495, 43645), (525, 41151), (609, 35475), (645, 33495), (693, 31175), (725, 29799), (825, 26187), (903, 23925), (957, 22575), (1015, 21285), (1075, 20097), (1155, 18705), (1247, 17325), (1305, 16555), (1419, 15225), (1505, 14355), (1575, 13717), (1595, 13545), (1827, 11825), (1925, 11223), (1935, 11165), (2175, 9933), (2233, 9675), (2365, 9135), (2475, 8729), (2709, 7975), (2871, 7525), (3045, 7095), (3225, 6699), (3311, 6525), (3465, 6235), (3741, 5775), (4257, 5075), (4515, 4785)]

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