21976808

素因数分解:

$2^3\times 7^1\times {\mathrm{392443}}^1$

素因数の和:392456

約数の個数: 16

約数和(自身を含む): 47093280

約数和(自身を除く): 25116472

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 392443, 784886, 1569772, 2747101, 3139544, 5494202, 10988404, 21976808]

約数ペア:

[(1, 21976808), (2, 10988404), (4, 5494202), (7, 3139544), (8, 2747101), (14, 1569772), (28, 784886), (56, 392443)]