21979143

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1731

約数の個数: 24

約数和(自身を含む): 33862400

約数和(自身を除く): 11883257

約数列:

[1, 3, 9, 19, 57, 79, 171, 237, 711, 1501, 1627, 4503, 4881, 13509, 14643, 30913, 92739, 128533, 278217, 385599, 1156797, 2442127, 7326381, 21979143]

約数ペア:

[(1, 21979143), (3, 7326381), (9, 2442127), (19, 1156797), (57, 385599), (79, 278217), (171, 128533), (237, 92739), (711, 30913), (1501, 14643), (1627, 13509), (4503, 4881)]