17856713

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 22855680

約数和(自身を除く): 4998967

約数列:

[1, 7, 19, 31, 61, 71, 133, 217, 427, 497, 589, 1159, 1349, 1891, 2201, 4123, 4331, 8113, 9443, 13237, 15407, 30317, 35929, 41819, 82289, 134261, 251503, 292733, 576023, 939827, 2550959, 17856713]

約数ペア:

[(1, 17856713), (7, 2550959), (19, 939827), (31, 576023), (61, 292733), (71, 251503), (133, 134261), (217, 82289), (427, 41819), (497, 35929), (589, 30317), (1159, 15407), (1349, 13237), (1891, 9443), (2201, 8113), (4123, 4331)]