21895664

素因数分解:

$2^4\times 7^1\times {\mathrm{195497}}^1$

素因数の和:195512

約数の個数: 20

約数和(自身を含む): 48483504

約数和(自身を除く): 26587840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 195497, 390994, 781988, 1368479, 1563976, 2736958, 3127952, 5473916, 10947832, 21895664]

約数ペア:

[(1, 21895664), (2, 10947832), (4, 5473916), (7, 3127952), (8, 2736958), (14, 1563976), (16, 1368479), (28, 781988), (56, 390994), (112, 195497)]