17977981

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 21212928

約数和(自身を除く): 3234947

約数列:

[1, 7, 61, 71, 427, 497, 593, 4151, 4331, 30317, 36173, 42103, 253211, 294721, 2568283, 17977981]

約数ペア:

[(1, 17977981), (7, 2568283), (61, 294721), (71, 253211), (427, 42103), (497, 36173), (593, 30317), (4151, 4331)]