28909089

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 21778911

約数列:

[1, 3, 9, 11, 19, 27, 33, 47, 57, 99, 109, 141, 171, 209, 297, 327, 423, 513, 517, 627, 893, 981, 1199, 1269, 1551, 1881, 2071, 2679, 2943, 3597, 4653, 5123, 5643, 6213, 8037, 9823, 10791, 13959, 15369, 18639, 22781, 24111, 29469, 32373, 46107, 55917, 56353, 68343, 88407, 97337, 138321, 169059, 205029, 265221, 292011, 507177, 615087, 876033, 1070707, 1521531, 2628099, 3212121, 9636363, 28909089]

約数ペア:

[(1, 28909089), (3, 9636363), (9, 3212121), (11, 2628099), (19, 1521531), (27, 1070707), (33, 876033), (47, 615087), (57, 507177), (99, 292011), (109, 265221), (141, 205029), (171, 169059), (209, 138321), (297, 97337), (327, 88407), (423, 68343), (513, 56353), (517, 55917), (627, 46107), (893, 32373), (981, 29469), (1199, 24111), (1269, 22781), (1551, 18639), (1881, 15369), (2071, 13959), (2679, 10791), (2943, 9823), (3597, 8037), (4653, 6213), (5123, 5643)]