199490049

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 323077248

約数和(自身を除く): 123587199

約数列:

[1, 3, 9, 11, 33, 71, 99, 101, 213, 281, 303, 639, 781, 843, 909, 1111, 2343, 2529, 3091, 3333, 7029, 7171, 9273, 9999, 19951, 21513, 27819, 28381, 59853, 64539, 78881, 85143, 179559, 219461, 236643, 255429, 312191, 658383, 709929, 936573, 1975149, 2015051, 2809719, 6045153, 18135459, 22165561, 66496683, 199490049]

約数ペア:

[(1, 199490049), (3, 66496683), (9, 22165561), (11, 18135459), (33, 6045153), (71, 2809719), (99, 2015051), (101, 1975149), (213, 936573), (281, 709929), (303, 658383), (639, 312191), (781, 255429), (843, 236643), (909, 219461), (1111, 179559), (2343, 85143), (2529, 78881), (3091, 64539), (3333, 59853), (7029, 28381), (7171, 27819), (9273, 21513), (9999, 19951)]