20021939

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 20

約数和(自身を含む): 24200640

約数和(自身を除く): 4178701

約数列:

[1, 7, 31, 49, 217, 269, 343, 1519, 1883, 2401, 8339, 10633, 13181, 58373, 74431, 92267, 408611, 645869, 2860277, 20021939]

約数ペア:

[(1, 20021939), (7, 2860277), (31, 645869), (49, 408611), (217, 92267), (269, 74431), (343, 58373), (1519, 13181), (1883, 10633), (2401, 8339)]