19984768

素因数分解:

$2^7\times {\mathrm{156131}}^1$

素因数の和:156145

約数の個数: 16

約数和(自身を含む): 39813660

約数和(自身を除く): 19828892

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 156131, 312262, 624524, 1249048, 2498096, 4996192, 9992384, 19984768]

約数ペア:

[(1, 19984768), (2, 9992384), (4, 4996192), (8, 2498096), (16, 1249048), (32, 624524), (64, 312262), (128, 156131)]