21725920

素因数分解:

$2^5\times 5^1\times {\mathrm{135787}}^1$

素因数の和:135802

約数の個数: 24

約数和(自身を含む): 51327864

約数和(自身を除く): 29601944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135787, 271574, 543148, 678935, 1086296, 1357870, 2172592, 2715740, 4345184, 5431480, 10862960, 21725920]

約数ペア:

[(1, 21725920), (2, 10862960), (4, 5431480), (5, 4345184), (8, 2715740), (10, 2172592), (16, 1357870), (20, 1086296), (32, 678935), (40, 543148), (80, 271574), (160, 135787)]