21023469

素因数分解:

$3^4\times {\mathrm{277}}^1\times {\mathrm{937}}^1$

素因数の和:1226

約数の個数: 20

約数和(自身を含む): 31552444

約数和(自身を除く): 10528975

約数列:

[1, 3, 9, 27, 81, 277, 831, 937, 2493, 2811, 7479, 8433, 22437, 25299, 75897, 259549, 778647, 2335941, 7007823, 21023469]

約数ペア:

[(1, 21023469), (3, 7007823), (9, 2335941), (27, 778647), (81, 259549), (277, 75897), (831, 25299), (937, 22437), (2493, 8433), (2811, 7479)]