21000209024

素因数分解:

$2^7\times {\mathrm{433}}^1\times {\mathrm{378901}}^1$

素因数の和:379348

約数の個数: 32

約数和(自身を含む): 41933084340

約数和(自身を除く): 20932875316

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 433, 866, 1732, 3464, 6928, 13856, 27712, 55424, 378901, 757802, 1515604, 3031208, 6062416, 12124832, 24249664, 48499328, 164064133, 328128266, 656256532, 1312513064, 2625026128, 5250052256, 10500104512, 21000209024]

約数ペア:

[(1, 21000209024), (2, 10500104512), (4, 5250052256), (8, 2625026128), (16, 1312513064), (32, 656256532), (64, 328128266), (128, 164064133), (433, 48499328), (866, 24249664), (1732, 12124832), (3464, 6062416), (6928, 3031208), (13856, 1515604), (27712, 757802), (55424, 378901)]