21986384

素因数分解:

$2^4\times 7^1\times {\mathrm{196307}}^1$

素因数の和:196322

約数の個数: 20

約数和(自身を含む): 48684384

約数和(自身を除く): 26698000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 196307, 392614, 785228, 1374149, 1570456, 2748298, 3140912, 5496596, 10993192, 21986384]

約数ペア:

[(1, 21986384), (2, 10993192), (4, 5496596), (7, 3140912), (8, 2748298), (14, 1570456), (16, 1374149), (28, 785228), (56, 392614), (112, 196307)]