31857243

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 51072000

約数和(自身を除く): 19214757

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 121, 149, 209, 341, 363, 447, 589, 627, 1023, 1639, 1767, 2299, 2831, 3751, 4619, 4917, 6479, 6897, 8493, 11253, 13857, 18029, 19437, 31141, 50809, 54087, 71269, 87761, 93423, 152427, 213807, 263283, 342551, 558899, 965371, 1027653, 1676697, 2896113, 10619081, 31857243]

約数ペア:

[(1, 31857243), (3, 10619081), (11, 2896113), (19, 1676697), (31, 1027653), (33, 965371), (57, 558899), (93, 342551), (121, 263283), (149, 213807), (209, 152427), (341, 93423), (363, 87761), (447, 71269), (589, 54087), (627, 50809), (1023, 31141), (1639, 19437), (1767, 18029), (2299, 13857), (2831, 11253), (3751, 8493), (4619, 6897), (4917, 6479)]