21178624

素因数分解:

$2^8\times {\mathrm{82729}}^1$

素因数の和:82745

約数の個数: 18

約数和(自身を含む): 42275030

約数和(自身を除く): 21096406

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 82729, 165458, 330916, 661832, 1323664, 2647328, 5294656, 10589312, 21178624]

約数ペア:

[(1, 21178624), (2, 10589312), (4, 5294656), (8, 2647328), (16, 1323664), (32, 661832), (64, 330916), (128, 165458), (256, 82729)]