25591027

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 8028941

約数列:

[1, 7, 11, 31, 71, 77, 151, 217, 341, 497, 781, 1057, 1661, 2201, 2387, 4681, 5467, 10721, 11627, 15407, 24211, 32767, 51491, 75047, 117931, 169477, 332351, 360437, 825517, 2326457, 3655861, 25591027]

約数ペア:

[(1, 25591027), (7, 3655861), (11, 2326457), (31, 825517), (71, 360437), (77, 332351), (151, 169477), (217, 117931), (341, 75047), (497, 51491), (781, 32767), (1057, 24211), (1661, 15407), (2201, 11627), (2387, 10721), (4681, 5467)]