21083895

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 45147648

約数和(自身を除く): 24063753

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 37, 45, 63, 67, 81, 105, 111, 135, 185, 189, 201, 243, 259, 315, 333, 335, 405, 469, 555, 567, 603, 777, 945, 999, 1005, 1215, 1295, 1407, 1665, 1701, 1809, 2331, 2345, 2479, 2835, 2997, 3015, 3885, 4221, 4995, 5427, 6993, 7035, 7437, 8505, 8991, 9045, 11655, 12395, 12663, 14985, 16281, 17353, 20979, 21105, 22311, 27135, 34965, 37185, 37989, 44955, 52059, 62937, 63315, 66933, 81405, 86765, 104895, 111555, 113967, 156177, 189945, 200799, 260295, 314685, 334665, 468531, 569835, 602397, 780885, 1003995, 1405593, 2342655, 3011985, 4216779, 7027965, 21083895]

約数ペア:

[(1, 21083895), (3, 7027965), (5, 4216779), (7, 3011985), (9, 2342655), (15, 1405593), (21, 1003995), (27, 780885), (35, 602397), (37, 569835), (45, 468531), (63, 334665), (67, 314685), (81, 260295), (105, 200799), (111, 189945), (135, 156177), (185, 113967), (189, 111555), (201, 104895), (243, 86765), (259, 81405), (315, 66933), (333, 63315), (335, 62937), (405, 52059), (469, 44955), (555, 37989), (567, 37185), (603, 34965), (777, 27135), (945, 22311), (999, 21105), (1005, 20979), (1215, 17353), (1295, 16281), (1407, 14985), (1665, 12663), (1701, 12395), (1809, 11655), (2331, 9045), (2345, 8991), (2479, 8505), (2835, 7437), (2997, 7035), (3015, 6993), (3885, 5427), (4221, 4995)]