18020794

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 12461126

約数列:

[1, 2, 11, 22, 71, 83, 139, 142, 166, 278, 781, 913, 1529, 1562, 1826, 3058, 5893, 9869, 11537, 11786, 19738, 23074, 64823, 108559, 126907, 129646, 217118, 253814, 819127, 1638254, 9010397, 18020794]

約数ペア:

[(1, 18020794), (2, 9010397), (11, 1638254), (22, 819127), (71, 253814), (83, 217118), (139, 129646), (142, 126907), (166, 108559), (278, 64823), (781, 23074), (913, 19738), (1529, 11786), (1562, 11537), (1826, 9869), (3058, 5893)]