21489599985

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{101873}}^1$

素因数の和:101943

約数の個数: 64

約数和(自身を含む): 41075596800

約数和(自身を除く): 19585996815

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 105, 123, 147, 205, 245, 287, 343, 615, 735, 861, 1029, 1435, 1715, 2009, 4305, 5145, 6027, 10045, 14063, 30135, 42189, 70315, 101873, 210945, 305619, 509365, 713111, 1528095, 2139333, 3565555, 4176793, 4991777, 10696665, 12530379, 14975331, 20883965, 24958885, 29237551, 34942439, 62651895, 74876655, 87712653, 104827317, 146187755, 174712195, 204662857, 438563265, 524136585, 613988571, 1023314285, 1432639999, 3069942855, 4297919997, 7163199995, 21489599985]

約数ペア:

[(1, 21489599985), (3, 7163199995), (5, 4297919997), (7, 3069942855), (15, 1432639999), (21, 1023314285), (35, 613988571), (41, 524136585), (49, 438563265), (105, 204662857), (123, 174712195), (147, 146187755), (205, 104827317), (245, 87712653), (287, 74876655), (343, 62651895), (615, 34942439), (735, 29237551), (861, 24958885), (1029, 20883965), (1435, 14975331), (1715, 12530379), (2009, 10696665), (4305, 4991777), (5145, 4176793), (6027, 3565555), (10045, 2139333), (14063, 1528095), (30135, 713111), (42189, 509365), (70315, 305619), (101873, 210945)]