16198721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2963}}^1$

素因数の和:3052

約数の個数: 16

約数和(自身を含む): 20487168

約数和(自身を除く): 4288447

約数列:

[1, 7, 11, 71, 77, 497, 781, 2963, 5467, 20741, 32593, 210373, 228151, 1472611, 2314103, 16198721]

約数ペア:

[(1, 16198721), (7, 2314103), (11, 1472611), (71, 228151), (77, 210373), (497, 32593), (781, 20741), (2963, 5467)]