21308766

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 26107554

約数列:

[1, 2, 3, 6, 19, 38, 41, 47, 57, 82, 94, 97, 114, 123, 141, 194, 246, 282, 291, 582, 779, 893, 1558, 1786, 1843, 1927, 2337, 2679, 3686, 3854, 3977, 4559, 4674, 5358, 5529, 5781, 7954, 9118, 11058, 11562, 11931, 13677, 23862, 27354, 36613, 73226, 75563, 86621, 109839, 151126, 173242, 186919, 219678, 226689, 259863, 373838, 453378, 519726, 560757, 1121514, 3551461, 7102922, 10654383, 21308766]

約数ペア:

[(1, 21308766), (2, 10654383), (3, 7102922), (6, 3551461), (19, 1121514), (38, 560757), (41, 519726), (47, 453378), (57, 373838), (82, 259863), (94, 226689), (97, 219678), (114, 186919), (123, 173242), (141, 151126), (194, 109839), (246, 86621), (282, 75563), (291, 73226), (582, 36613), (779, 27354), (893, 23862), (1558, 13677), (1786, 11931), (1843, 11562), (1927, 11058), (2337, 9118), (2679, 7954), (3686, 5781), (3854, 5529), (3977, 5358), (4559, 4674)]