11971239

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 19961856

約数和(自身を除く): 7990617

約数列:

[1, 3, 7, 21, 31, 37, 49, 71, 93, 111, 147, 213, 217, 259, 497, 651, 777, 1147, 1491, 1519, 1813, 2201, 2627, 3441, 3479, 4557, 5439, 6603, 7881, 8029, 10437, 15407, 18389, 24087, 46221, 55167, 56203, 81437, 107849, 128723, 168609, 244311, 323547, 386169, 570059, 1710177, 3990413, 11971239]

約数ペア:

[(1, 11971239), (3, 3990413), (7, 1710177), (21, 570059), (31, 386169), (37, 323547), (49, 244311), (71, 168609), (93, 128723), (111, 107849), (147, 81437), (213, 56203), (217, 55167), (259, 46221), (497, 24087), (651, 18389), (777, 15407), (1147, 10437), (1491, 8029), (1519, 7881), (1813, 6603), (2201, 5439), (2627, 4557), (3441, 3479)]