18830691

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 33177600

約数和(自身を除く): 14346909

約数列:

[1, 3, 9, 11, 19, 27, 33, 47, 57, 71, 99, 141, 171, 209, 213, 297, 423, 513, 517, 627, 639, 781, 893, 1269, 1349, 1551, 1881, 1917, 2343, 2679, 3337, 4047, 4653, 5643, 7029, 8037, 9823, 10011, 12141, 13959, 14839, 21087, 24111, 29469, 30033, 36423, 36707, 44517, 63403, 88407, 90099, 110121, 133551, 190209, 265221, 330363, 400653, 570627, 697433, 991089, 1711881, 2092299, 6276897, 18830691]

約数ペア:

[(1, 18830691), (3, 6276897), (9, 2092299), (11, 1711881), (19, 991089), (27, 697433), (33, 570627), (47, 400653), (57, 330363), (71, 265221), (99, 190209), (141, 133551), (171, 110121), (209, 90099), (213, 88407), (297, 63403), (423, 44517), (513, 36707), (517, 36423), (627, 30033), (639, 29469), (781, 24111), (893, 21087), (1269, 14839), (1349, 13959), (1551, 12141), (1881, 10011), (1917, 9823), (2343, 8037), (2679, 7029), (3337, 5643), (4047, 4653)]