19980259

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41539}}^1$

素因数の和:41589

約数の個数: 8

約数和(自身を含む): 22099280

約数和(自身を除く): 2119021

約数列:

[1, 13, 37, 481, 41539, 540007, 1536943, 19980259]

約数ペア:

[(1, 19980259), (13, 1536943), (37, 540007), (481, 41539)]