19771983

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 36082176

約数和(自身を除く): 16310193

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 103, 231, 277, 309, 693, 721, 831, 927, 1133, 1939, 2163, 2493, 3047, 3399, 5817, 6489, 7931, 9141, 10197, 17451, 21329, 23793, 27423, 28531, 63987, 71379, 85593, 191961, 199717, 256779, 313841, 599151, 941523, 1797453, 2196887, 2824569, 6590661, 19771983]

約数ペア:

[(1, 19771983), (3, 6590661), (7, 2824569), (9, 2196887), (11, 1797453), (21, 941523), (33, 599151), (63, 313841), (77, 256779), (99, 199717), (103, 191961), (231, 85593), (277, 71379), (309, 63987), (693, 28531), (721, 27423), (831, 23793), (927, 21329), (1133, 17451), (1939, 10197), (2163, 9141), (2493, 7931), (3047, 6489), (3399, 5817)]