19885264

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4129}}^1$

素因数の和:4187

約数の個数: 40

約数和(自身を含む): 45066560

約数和(自身を除く): 25181296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4129, 4816, 8258, 16516, 28903, 33032, 57806, 66064, 115612, 177547, 231224, 355094, 462448, 710188, 1242829, 1420376, 2485658, 2840752, 4971316, 9942632, 19885264]

約数ペア:

[(1, 19885264), (2, 9942632), (4, 4971316), (7, 2840752), (8, 2485658), (14, 1420376), (16, 1242829), (28, 710188), (43, 462448), (56, 355094), (86, 231224), (112, 177547), (172, 115612), (301, 66064), (344, 57806), (602, 33032), (688, 28903), (1204, 16516), (2408, 8258), (4129, 4816)]