21128192

素因数分解:

$2^{10}\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:506

約数の個数: 44

約数和(自身を含む): 43232640

約数和(自身を除く): 22104448

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 256, 376, 439, 512, 752, 878, 1024, 1504, 1756, 3008, 3512, 6016, 7024, 12032, 14048, 20633, 24064, 28096, 41266, 48128, 56192, 82532, 112384, 165064, 224768, 330128, 449536, 660256, 1320512, 2641024, 5282048, 10564096, 21128192]

約数ペア:

[(1, 21128192), (2, 10564096), (4, 5282048), (8, 2641024), (16, 1320512), (32, 660256), (47, 449536), (64, 330128), (94, 224768), (128, 165064), (188, 112384), (256, 82532), (376, 56192), (439, 48128), (512, 41266), (752, 28096), (878, 24064), (1024, 20633), (1504, 14048), (1756, 12032), (3008, 7024), (3512, 6016)]