20166465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 36465408

約数和(自身を除く): 16298943

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 121, 123, 165, 205, 271, 363, 451, 605, 615, 813, 1353, 1355, 1815, 2255, 2981, 4065, 4961, 6765, 8943, 11111, 14883, 14905, 24805, 32791, 33333, 44715, 55555, 74415, 98373, 122221, 163955, 166665, 366663, 491865, 611105, 1344431, 1833315, 4033293, 6722155, 20166465]

約数ペア:

[(1, 20166465), (3, 6722155), (5, 4033293), (11, 1833315), (15, 1344431), (33, 611105), (41, 491865), (55, 366663), (121, 166665), (123, 163955), (165, 122221), (205, 98373), (271, 74415), (363, 55555), (451, 44715), (605, 33333), (615, 32791), (813, 24805), (1353, 14905), (1355, 14883), (1815, 11111), (2255, 8943), (2981, 6765), (4065, 4961)]