21854691

素因数分解:

$3^8\times {\mathrm{3331}}^1$

素因数の和:3355

約数の個数: 18

約数和(自身を含む): 32790212

約数和(自身を除く): 10935521

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 3331, 6561, 9993, 29979, 89937, 269811, 809433, 2428299, 7284897, 21854691]

約数ペア:

[(1, 21854691), (3, 7284897), (9, 2428299), (27, 809433), (81, 269811), (243, 89937), (729, 29979), (2187, 9993), (3331, 6561)]