20158281

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16613559

約数列:

[1, 3, 9, 11, 13, 23, 27, 33, 39, 69, 99, 117, 143, 207, 227, 253, 297, 299, 351, 429, 621, 681, 759, 897, 1287, 2043, 2277, 2497, 2691, 2951, 3289, 3861, 5221, 6129, 6831, 7491, 8073, 8853, 9867, 15663, 22473, 26559, 29601, 32461, 46989, 57431, 67419, 67873, 79677, 88803, 97383, 140967, 172293, 203619, 292149, 516879, 610857, 746603, 876447, 1550637, 1832571, 2239809, 6719427, 20158281]

約数ペア:

[(1, 20158281), (3, 6719427), (9, 2239809), (11, 1832571), (13, 1550637), (23, 876447), (27, 746603), (33, 610857), (39, 516879), (69, 292149), (99, 203619), (117, 172293), (143, 140967), (207, 97383), (227, 88803), (253, 79677), (297, 67873), (299, 67419), (351, 57431), (429, 46989), (621, 32461), (681, 29601), (759, 26559), (897, 22473), (1287, 15663), (2043, 9867), (2277, 8853), (2497, 8073), (2691, 7491), (2951, 6831), (3289, 6129), (3861, 5221)]