21748103

素因数分解:

${\mathrm{13}}^3\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 16

約数和(自身を含む): 24847200

約数和(自身を除く): 3099097

約数列:

[1, 13, 19, 169, 247, 521, 2197, 3211, 6773, 9899, 41743, 88049, 128687, 1144637, 1672931, 21748103]

約数ペア:

[(1, 21748103), (13, 1672931), (19, 1144637), (169, 128687), (247, 88049), (521, 41743), (2197, 9899), (3211, 6773)]