21332799

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 32359392

約数和(自身を除く): 11026593

約数列:

[1, 3, 9, 23, 69, 207, 257, 401, 771, 1203, 2313, 3609, 5911, 9223, 17733, 27669, 53199, 83007, 103057, 309171, 927513, 2370311, 7110933, 21332799]

約数ペア:

[(1, 21332799), (3, 7110933), (9, 2370311), (23, 927513), (69, 309171), (207, 103057), (257, 83007), (401, 53199), (771, 27669), (1203, 17733), (2313, 9223), (3609, 5911)]