21384891

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{24001}}^1$

素因数の和:24024

約数の個数: 20

約数和(自身を含む): 34850904

約数和(自身を除く): 13466013

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 24001, 72003, 216009, 264011, 648027, 792033, 1944081, 2376099, 7128297, 21384891]

約数ペア:

[(1, 21384891), (3, 7128297), (9, 2376099), (11, 1944081), (27, 792033), (33, 648027), (81, 264011), (99, 216009), (297, 72003), (891, 24001)]