212523519

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 329849856

約数和(自身を除く): 117326337

約数列:

[1, 3, 13, 23, 39, 47, 69, 71, 141, 213, 299, 611, 897, 923, 1081, 1633, 1833, 2769, 3243, 3337, 4899, 5041, 10011, 14053, 15123, 21229, 42159, 43381, 63687, 65533, 76751, 115943, 130143, 196599, 230253, 236927, 347829, 710781, 997763, 1507259, 2993289, 3080051, 4521777, 5449321, 9240153, 16347963, 70841173, 212523519]

約数ペア:

[(1, 212523519), (3, 70841173), (13, 16347963), (23, 9240153), (39, 5449321), (47, 4521777), (69, 3080051), (71, 2993289), (141, 1507259), (213, 997763), (299, 710781), (611, 347829), (897, 236927), (923, 230253), (1081, 196599), (1633, 130143), (1833, 115943), (2769, 76751), (3243, 65533), (3337, 63687), (4899, 43381), (5041, 42159), (10011, 21229), (14053, 15123)]