21178142292

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{81551}}^1$

素因数の和:81661

約数の個数: 96

約数和(自身を含む): 55899002880

約数和(自身を除く): 34720860588

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 67, 68, 76, 102, 114, 134, 201, 204, 228, 268, 323, 402, 646, 804, 969, 1139, 1273, 1292, 1938, 2278, 2546, 3417, 3819, 3876, 4556, 5092, 6834, 7638, 13668, 15276, 21641, 43282, 64923, 81551, 86564, 129846, 163102, 244653, 259692, 326204, 489306, 978612, 1386367, 1549469, 2772734, 3098938, 4159101, 4648407, 5463917, 5545468, 6197876, 8318202, 9296814, 10927834, 16391751, 16636404, 18593628, 21855668, 26340973, 32783502, 52681946, 65567004, 79022919, 92886589, 103814423, 105363892, 158045838, 185773178, 207628846, 278659767, 311443269, 316091676, 371546356, 415257692, 557319534, 622886538, 1114639068, 1245773076, 1764845191, 3529690382, 5294535573, 7059380764, 10589071146, 21178142292]

約数ペア:

[(1, 21178142292), (2, 10589071146), (3, 7059380764), (4, 5294535573), (6, 3529690382), (12, 1764845191), (17, 1245773076), (19, 1114639068), (34, 622886538), (38, 557319534), (51, 415257692), (57, 371546356), (67, 316091676), (68, 311443269), (76, 278659767), (102, 207628846), (114, 185773178), (134, 158045838), (201, 105363892), (204, 103814423), (228, 92886589), (268, 79022919), (323, 65567004), (402, 52681946), (646, 32783502), (804, 26340973), (969, 21855668), (1139, 18593628), (1273, 16636404), (1292, 16391751), (1938, 10927834), (2278, 9296814), (2546, 8318202), (3417, 6197876), (3819, 5545468), (3876, 5463917), (4556, 4648407), (5092, 4159101), (6834, 3098938), (7638, 2772734), (13668, 1549469), (15276, 1386367), (21641, 978612), (43282, 489306), (64923, 326204), (81551, 259692), (86564, 244653), (129846, 163102)]