28895751

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 49152000

約数和(自身を除く): 20256249

約数列:

[1, 3, 9, 19, 23, 27, 31, 57, 69, 79, 93, 171, 207, 237, 279, 437, 513, 589, 621, 711, 713, 837, 1311, 1501, 1767, 1817, 2133, 2139, 2449, 3933, 4503, 5301, 5451, 6417, 7347, 11799, 13509, 13547, 15903, 16353, 19251, 22041, 34523, 40527, 40641, 46531, 49059, 56327, 66123, 103569, 121923, 139593, 168981, 310707, 365769, 418779, 506943, 932121, 1070213, 1256337, 1520829, 3210639, 9631917, 28895751]

約数ペア:

[(1, 28895751), (3, 9631917), (9, 3210639), (19, 1520829), (23, 1256337), (27, 1070213), (31, 932121), (57, 506943), (69, 418779), (79, 365769), (93, 310707), (171, 168981), (207, 139593), (237, 121923), (279, 103569), (437, 66123), (513, 56327), (589, 49059), (621, 46531), (711, 40641), (713, 40527), (837, 34523), (1311, 22041), (1501, 19251), (1767, 16353), (1817, 15903), (2133, 13547), (2139, 13509), (2449, 11799), (3933, 7347), (4503, 6417), (5301, 5451)]