13091309

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 17646336

約数和(自身を除く): 4555027

約数列:

[1, 7, 11, 17, 73, 77, 119, 137, 187, 511, 803, 959, 1241, 1309, 1507, 2329, 5621, 8687, 10001, 10549, 13651, 16303, 25619, 70007, 95557, 110011, 170017, 179333, 770077, 1190119, 1870187, 13091309]

約数ペア:

[(1, 13091309), (7, 1870187), (11, 1190119), (17, 770077), (73, 179333), (77, 170017), (119, 110011), (137, 95557), (187, 70007), (511, 25619), (803, 16303), (959, 13651), (1241, 10549), (1309, 10001), (1507, 8687), (2329, 5621)]