21000815451

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{17189}}^1$

素因数の和:17297

約数の個数: 96

約数和(自身を含む): 39645365760

約数和(自身を除く): 18644550309

約数列:

[1, 3, 7, 9, 11, 21, 33, 41, 43, 63, 77, 99, 123, 129, 231, 287, 301, 369, 387, 451, 473, 693, 861, 903, 1353, 1419, 1763, 2583, 2709, 3157, 3311, 4059, 4257, 5289, 9471, 9933, 12341, 15867, 17189, 19393, 28413, 29799, 37023, 51567, 58179, 111069, 120323, 135751, 154701, 174537, 189079, 360969, 407253, 567237, 704749, 739127, 1082907, 1221759, 1323553, 1701711, 2114247, 2217381, 3970659, 4933243, 5173889, 6342741, 6652143, 7752239, 8130397, 11911977, 14799729, 15521667, 23256717, 24391191, 30304207, 44399187, 46565001, 54265673, 56912779, 69770151, 73173573, 90912621, 162797019, 170738337, 212129449, 272737863, 333346277, 488391057, 512215011, 636388347, 1000038831, 1909165041, 2333423939, 3000116493, 7000271817, 21000815451]

約数ペア:

[(1, 21000815451), (3, 7000271817), (7, 3000116493), (9, 2333423939), (11, 1909165041), (21, 1000038831), (33, 636388347), (41, 512215011), (43, 488391057), (63, 333346277), (77, 272737863), (99, 212129449), (123, 170738337), (129, 162797019), (231, 90912621), (287, 73173573), (301, 69770151), (369, 56912779), (387, 54265673), (451, 46565001), (473, 44399187), (693, 30304207), (861, 24391191), (903, 23256717), (1353, 15521667), (1419, 14799729), (1763, 11911977), (2583, 8130397), (2709, 7752239), (3157, 6652143), (3311, 6342741), (4059, 5173889), (4257, 4933243), (5289, 3970659), (9471, 2217381), (9933, 2114247), (12341, 1701711), (15867, 1323553), (17189, 1221759), (19393, 1082907), (28413, 739127), (29799, 704749), (37023, 567237), (51567, 407253), (58179, 360969), (111069, 189079), (120323, 174537), (135751, 154701)]