21008889704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1451}}^1\times {\mathrm{4013}}^1$

素因数の和:5522

約数の個数: 64

約数和(自身を含む): 44062159680

約数和(自身を除く): 23053269976

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1451, 1804, 2902, 3608, 4013, 5804, 8026, 11608, 15961, 16052, 31922, 32104, 44143, 59491, 63844, 88286, 118982, 127688, 164533, 176572, 237964, 329066, 353144, 475928, 654401, 658132, 1308802, 1316264, 1809863, 2617604, 3619726, 5235208, 5822863, 7239452, 11645726, 14478904, 23291452, 46582904, 64051493, 128102986, 238737383, 256205972, 477474766, 512411944, 954949532, 1909899064, 2626111213, 5252222426, 10504444852, 21008889704]

約数ペア:

[(1, 21008889704), (2, 10504444852), (4, 5252222426), (8, 2626111213), (11, 1909899064), (22, 954949532), (41, 512411944), (44, 477474766), (82, 256205972), (88, 238737383), (164, 128102986), (328, 64051493), (451, 46582904), (902, 23291452), (1451, 14478904), (1804, 11645726), (2902, 7239452), (3608, 5822863), (4013, 5235208), (5804, 3619726), (8026, 2617604), (11608, 1809863), (15961, 1316264), (16052, 1308802), (31922, 658132), (32104, 654401), (44143, 475928), (59491, 353144), (63844, 329066), (88286, 237964), (118982, 176572), (127688, 164533)]