About the Number
21342600981
2進数表記:10011111000000111100011111100010101
漢数字表記:二百十三億四千二百六十万九百八十一
素因数分解:
素因数の和:2948
約数の個数: 80
約数和(自身を含む): 35162358000
約数和(自身を除く): 13819757019
約数列:
[1, 3, 9, 13, 27, 39, 73, 81, 101, 117, 219, 303, 351, 657, 909, 949, 1053, 1313, 1971, 2727, 2749, 2847, 3939, 5913, 7373, 8181, 8247, 8541, 11817, 22119, 24741, 25623, 35451, 35737, 66357, 74223, 76869, 95849, 106353, 107211, 199071, 200677, 222669, 277649, 287547, 321633, 597213, 602031, 832947, 862641, 964899, 1806093, 2498841, 2587923, 2608801, 2894697, 3609437, 5418279, 7496523, 7763769, 7826403, 10828311, 16254837, 20268377, 22489569, 23479209, 32484933, 60805131, 70437627, 97454799, 182415393, 211312881, 263488901, 292364397, 547246179, 790466703, 1641738537, 2371400109, 7114200327, 21342600981]
約数ペア:
[(1, 21342600981), (3, 7114200327), (9, 2371400109), (13, 1641738537), (27, 790466703), (39, 547246179), (73, 292364397), (81, 263488901), (101, 211312881), (117, 182415393), (219, 97454799), (303, 70437627), (351, 60805131), (657, 32484933), (909, 23479209), (949, 22489569), (1053, 20268377), (1313, 16254837), (1971, 10828311), (2727, 7826403), (2749, 7763769), (2847, 7496523), (3939, 5418279), (5913, 3609437), (7373, 2894697), (8181, 2608801), (8247, 2587923), (8541, 2498841), (11817, 1806093), (22119, 964899), (24741, 862641), (25623, 832947), (35451, 602031), (35737, 597213), (66357, 321633), (74223, 287547), (76869, 277649), (95849, 222669), (106353, 200677), (107211, 199071)]このpageの処理時間: 0.03731560707092285 seconds