28868103

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 19757817

約数列:

[1, 3, 9, 11, 27, 33, 37, 71, 99, 111, 213, 297, 333, 407, 639, 781, 999, 1221, 1369, 1917, 2343, 2627, 3663, 4107, 7029, 7881, 10989, 12321, 15059, 21087, 23643, 28897, 36963, 45177, 70929, 86691, 97199, 135531, 260073, 291597, 406593, 780219, 874791, 1069189, 2624373, 3207567, 9622701, 28868103]

約数ペア:

[(1, 28868103), (3, 9622701), (9, 3207567), (11, 2624373), (27, 1069189), (33, 874791), (37, 780219), (71, 406593), (99, 291597), (111, 260073), (213, 135531), (297, 97199), (333, 86691), (407, 70929), (639, 45177), (781, 36963), (999, 28897), (1221, 23643), (1369, 21087), (1917, 15059), (2343, 12321), (2627, 10989), (3663, 7881), (4107, 7029)]