20651193

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{1321}}^1$

素因数の和:1526

約数の個数: 20

約数和(自身を含む): 31032628

約数和(自身を除く): 10381435

約数列:

[1, 3, 9, 27, 81, 193, 579, 1321, 1737, 3963, 5211, 11889, 15633, 35667, 107001, 254953, 764859, 2294577, 6883731, 20651193]

約数ペア:

[(1, 20651193), (3, 6883731), (9, 2294577), (27, 764859), (81, 254953), (193, 107001), (579, 35667), (1321, 15633), (1737, 11889), (3963, 5211)]