20213469

素因数分解:

$3^5\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:639

約数の個数: 24

約数和(自身を含む): 30506112

約数和(自身を除く): 10292643

約数列:

[1, 3, 9, 27, 81, 193, 243, 431, 579, 1293, 1737, 3879, 5211, 11637, 15633, 34911, 46899, 83183, 104733, 249549, 748647, 2245941, 6737823, 20213469]

約数ペア:

[(1, 20213469), (3, 6737823), (9, 2245941), (27, 748647), (81, 249549), (193, 104733), (243, 83183), (431, 46899), (579, 34911), (1293, 15633), (1737, 11637), (3879, 5211)]