21422151

素因数分解:

$3^5\times {\mathrm{199}}^1\times {\mathrm{443}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 32323200

約数和(自身を除く): 10901049

約数列:

[1, 3, 9, 27, 81, 199, 243, 443, 597, 1329, 1791, 3987, 5373, 11961, 16119, 35883, 48357, 88157, 107649, 264471, 793413, 2380239, 7140717, 21422151]

約数ペア:

[(1, 21422151), (3, 7140717), (9, 2380239), (27, 793413), (81, 264471), (199, 107649), (243, 88157), (443, 48357), (597, 35883), (1329, 16119), (1791, 11961), (3987, 5373)]