27687231

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 21664449

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 71, 99, 101, 117, 143, 213, 297, 303, 351, 429, 639, 781, 909, 923, 1111, 1287, 1313, 1917, 2343, 2727, 2769, 3333, 3861, 3939, 7029, 7171, 8307, 9999, 10153, 11817, 14443, 21087, 21513, 24921, 29997, 30459, 35451, 43329, 64539, 78881, 91377, 93223, 129987, 193617, 236643, 274131, 279669, 389961, 709929, 839007, 1025453, 2129787, 2517021, 3076359, 9229077, 27687231]

約数ペア:

[(1, 27687231), (3, 9229077), (9, 3076359), (11, 2517021), (13, 2129787), (27, 1025453), (33, 839007), (39, 709929), (71, 389961), (99, 279669), (101, 274131), (117, 236643), (143, 193617), (213, 129987), (297, 93223), (303, 91377), (351, 78881), (429, 64539), (639, 43329), (781, 35451), (909, 30459), (923, 29997), (1111, 24921), (1287, 21513), (1313, 21087), (1917, 14443), (2343, 11817), (2727, 10153), (2769, 9999), (3333, 8307), (3861, 7171), (3939, 7029)]