21149492

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{599}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 46099200

約数和(自身を除く): 24949708

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 97, 182, 194, 364, 388, 599, 679, 1198, 1261, 1358, 2396, 2522, 2716, 4193, 5044, 7787, 8386, 8827, 15574, 16772, 17654, 31148, 35308, 54509, 58103, 109018, 116206, 218036, 232412, 406721, 755339, 813442, 1510678, 1626884, 3021356, 5287373, 10574746, 21149492]

約数ペア:

[(1, 21149492), (2, 10574746), (4, 5287373), (7, 3021356), (13, 1626884), (14, 1510678), (26, 813442), (28, 755339), (52, 406721), (91, 232412), (97, 218036), (182, 116206), (194, 109018), (364, 58103), (388, 54509), (599, 35308), (679, 31148), (1198, 17654), (1261, 16772), (1358, 15574), (2396, 8827), (2522, 8386), (2716, 7787), (4193, 5044)]