261852241

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 329142528

約数和(自身を除く): 67290287

約数列:

[1, 7, 17, 43, 73, 119, 301, 511, 701, 731, 1241, 3139, 4907, 5117, 8687, 11917, 21973, 30143, 51173, 53363, 83419, 211001, 358211, 373541, 512431, 869941, 2200439, 3587017, 6089587, 15403073, 37407463, 261852241]

約数ペア:

[(1, 261852241), (7, 37407463), (17, 15403073), (43, 6089587), (73, 3587017), (119, 2200439), (301, 869941), (511, 512431), (701, 373541), (731, 358211), (1241, 211001), (3139, 83419), (4907, 53363), (5117, 51173), (8687, 30143), (11917, 21973)]