About the Number

214920321

214920320 ← → 214920322

2進数表記:1100110011110110110010000001

漢数字表記:二億千四百九十二万三百二十一

素因数分解:

3 1 × 7 2 × 11 2 × 43 1 × 281 1

素因数の和:363
約数の個数: 72
約数和(自身を含む): 376260192
約数和(自身を除く): 161339871

約数列:
[1, 3, 7, 11, 21, 33, 43, 49, 77, 121, 129, 147, 231, 281, 301, 363, 473, 539, 843, 847, 903, 1419, 1617, 1967, 2107, 2541, 3091, 3311, 5203, 5901, 5929, 6321, 9273, 9933, 12083, 13769, 15609, 17787, 21637, 23177, 34001, 36249, 36421, 41307, 64911, 69531, 84581, 102003, 109263, 132913, 151459, 238007, 253743, 254947, 398739, 454377, 592067, 714021, 764841, 930391, 1462043, 1666049, 1776201, 2791173, 4386129, 4998147, 6512737, 10234301, 19538211, 30702903, 71640107, 214920321]

約数ペア:
[(1, 214920321), (3, 71640107), (7, 30702903), (11, 19538211), (21, 10234301), (33, 6512737), (43, 4998147), (49, 4386129), (77, 2791173), (121, 1776201), (129, 1666049), (147, 1462043), (231, 930391), (281, 764841), (301, 714021), (363, 592067), (473, 454377), (539, 398739), (843, 254947), (847, 253743), (903, 238007), (1419, 151459), (1617, 132913), (1967, 109263), (2107, 102003), (2541, 84581), (3091, 69531), (3311, 64911), (5203, 41307), (5901, 36421), (5929, 36249), (6321, 34001), (9273, 23177), (9933, 21637), (12083, 17787), (13769, 15609)]

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