18985396

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 18512204

約数列:

[1, 2, 4, 17, 23, 34, 46, 61, 68, 92, 122, 199, 244, 391, 398, 782, 796, 1037, 1403, 1564, 2074, 2806, 3383, 4148, 4577, 5612, 6766, 9154, 12139, 13532, 18308, 23851, 24278, 47702, 48556, 77809, 95404, 155618, 206363, 279197, 311236, 412726, 558394, 825452, 1116788, 4746349, 9492698, 18985396]

約数ペア:

[(1, 18985396), (2, 9492698), (4, 4746349), (17, 1116788), (23, 825452), (34, 558394), (46, 412726), (61, 311236), (68, 279197), (92, 206363), (122, 155618), (199, 95404), (244, 77809), (391, 48556), (398, 47702), (782, 24278), (796, 23851), (1037, 18308), (1403, 13532), (1564, 12139), (2074, 9154), (2806, 6766), (3383, 5612), (4148, 4577)]