About the Number

21385518

21385517 ← → 21385519

2進数表記:1010001100101000100101110

漢数字表記:二千百三十八万五千五百十八

素因数分解:

2 1 × 3 1 × 7 1 × 11 1 × 41 1 × 1129 1

素因数の和:1193
約数の個数: 64
約数和(自身を含む): 54673920
約数和(自身を除く): 33288402

約数列:
[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 41, 42, 66, 77, 82, 123, 154, 231, 246, 287, 451, 462, 574, 861, 902, 1129, 1353, 1722, 2258, 2706, 3157, 3387, 6314, 6774, 7903, 9471, 12419, 15806, 18942, 23709, 24838, 37257, 46289, 47418, 74514, 86933, 92578, 138867, 173866, 260799, 277734, 324023, 509179, 521598, 648046, 972069, 1018358, 1527537, 1944138, 3055074, 3564253, 7128506, 10692759, 21385518]

約数ペア:
[(1, 21385518), (2, 10692759), (3, 7128506), (6, 3564253), (7, 3055074), (11, 1944138), (14, 1527537), (21, 1018358), (22, 972069), (33, 648046), (41, 521598), (42, 509179), (66, 324023), (77, 277734), (82, 260799), (123, 173866), (154, 138867), (231, 92578), (246, 86933), (287, 74514), (451, 47418), (462, 46289), (574, 37257), (861, 24838), (902, 23709), (1129, 18942), (1353, 15806), (1722, 12419), (2258, 9471), (2706, 7903), (3157, 6774), (3387, 6314)]

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