205121609

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{449}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 272160000

約数和(自身を除く): 67038391

約数列:

[1, 7, 11, 17, 77, 119, 187, 349, 449, 1309, 2443, 3143, 3839, 4939, 5933, 7633, 26873, 34573, 41531, 53431, 65263, 83963, 156701, 456841, 587741, 1096907, 1723711, 2663917, 12065977, 18647419, 29303087, 205121609]

約数ペア:

[(1, 205121609), (7, 29303087), (11, 18647419), (17, 12065977), (77, 2663917), (119, 1723711), (187, 1096907), (349, 587741), (449, 456841), (1309, 156701), (2443, 83963), (3143, 65263), (3839, 53431), (4939, 41531), (5933, 34573), (7633, 26873)]