19817896

素因数分解:

$2^3\times 7^1\times {\mathrm{353891}}^1$

素因数の和:353904

約数の個数: 16

約数和(自身を含む): 42467040

約数和(自身を除く): 22649144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353891, 707782, 1415564, 2477237, 2831128, 4954474, 9908948, 19817896]

約数ペア:

[(1, 19817896), (2, 9908948), (4, 4954474), (7, 2831128), (8, 2477237), (14, 1415564), (28, 707782), (56, 353891)]