21059445

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 38074176

約数和(自身を除く): 17014731

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 121, 123, 165, 205, 283, 363, 451, 605, 615, 849, 1353, 1415, 1815, 2255, 3113, 4245, 4961, 6765, 9339, 11603, 14883, 15565, 24805, 34243, 34809, 46695, 58015, 74415, 102729, 127633, 171215, 174045, 382899, 513645, 638165, 1403963, 1914495, 4211889, 7019815, 21059445]

約数ペア:

[(1, 21059445), (3, 7019815), (5, 4211889), (11, 1914495), (15, 1403963), (33, 638165), (41, 513645), (55, 382899), (121, 174045), (123, 171215), (165, 127633), (205, 102729), (283, 74415), (363, 58015), (451, 46695), (605, 34809), (615, 34243), (849, 24805), (1353, 15565), (1415, 14883), (1815, 11603), (2255, 9339), (3113, 6765), (4245, 4961)]