18786573

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 32002880

約数和(自身を除く): 13216307

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 243, 247, 313, 351, 513, 741, 939, 1053, 1539, 2223, 2817, 3159, 4069, 4617, 5947, 6669, 8451, 12207, 17841, 20007, 25353, 36621, 53523, 60021, 76059, 77311, 109863, 160569, 231933, 329589, 481707, 695799, 988767, 1445121, 2087397, 6262191, 18786573]

約数ペア:

[(1, 18786573), (3, 6262191), (9, 2087397), (13, 1445121), (19, 988767), (27, 695799), (39, 481707), (57, 329589), (81, 231933), (117, 160569), (171, 109863), (243, 77311), (247, 76059), (313, 60021), (351, 53523), (513, 36621), (741, 25353), (939, 20007), (1053, 17841), (1539, 12207), (2223, 8451), (2817, 6669), (3159, 5947), (4069, 4617)]