19998407512

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{28087651}}^1$

素因数の和:28087746

約数の個数: 16

約数和(自身を含む): 37918330200

約数和(自身を除く): 17919922688

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 28087651, 56175302, 112350604, 224701208, 2499800939, 4999601878, 9999203756, 19998407512]

約数ペア:

[(1, 19998407512), (2, 9999203756), (4, 4999601878), (8, 2499800939), (89, 224701208), (178, 112350604), (356, 56175302), (712, 28087651)]