21078656

素因数分解:

$2^7\times {\mathrm{164677}}^1$

素因数の和:164691

約数の個数: 16

約数和(自身を含む): 41992890

約数和(自身を除く): 20914234

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 164677, 329354, 658708, 1317416, 2634832, 5269664, 10539328, 21078656]

約数ペア:

[(1, 21078656), (2, 10539328), (4, 5269664), (8, 2634832), (16, 1317416), (32, 658708), (64, 329354), (128, 164677)]