21508726568

素因数分解:

$2^3\times 7^1\times {\mathrm{384084403}}^1$

素因数の和:384084416

約数の個数: 16

約数和(自身を含む): 46090128480

約数和(自身を除く): 24581401912

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 384084403, 768168806, 1536337612, 2688590821, 3072675224, 5377181642, 10754363284, 21508726568]

約数ペア:

[(1, 21508726568), (2, 10754363284), (4, 5377181642), (7, 3072675224), (8, 2688590821), (14, 1536337612), (28, 768168806), (56, 384084403)]