20643536

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{2939}}^1$

素因数の和:3386

約数の個数: 20

約数和(自身を含む): 40101600

約数和(自身を除く): 19458064

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 2939, 3512, 5878, 7024, 11756, 23512, 47024, 1290221, 2580442, 5160884, 10321768, 20643536]

約数ペア:

[(1, 20643536), (2, 10321768), (4, 5160884), (8, 2580442), (16, 1290221), (439, 47024), (878, 23512), (1756, 11756), (2939, 7024), (3512, 5878)]