20487467

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 27922944

約数和(自身を除く): 7435477

約数列:

[1, 7, 11, 13, 77, 91, 97, 143, 211, 679, 1001, 1067, 1261, 1477, 2321, 2743, 7469, 8827, 13871, 16247, 19201, 20467, 30173, 97097, 143269, 211211, 225137, 266071, 1575959, 1862497, 2926781, 20487467]

約数ペア:

[(1, 20487467), (7, 2926781), (11, 1862497), (13, 1575959), (77, 266071), (91, 225137), (97, 211211), (143, 143269), (211, 97097), (679, 30173), (1001, 20467), (1067, 19201), (1261, 16247), (1477, 13871), (2321, 8827), (2743, 7469)]