21000974398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{552657221}}^1$

素因数の和:552657242

約数の個数: 8

約数和(自身を含む): 33159433320

約数和(自身を除く): 12158458922

約数列:

[1, 2, 19, 38, 552657221, 1105314442, 10500487199, 21000974398]

約数ペア:

[(1, 21000974398), (2, 10500487199), (19, 1105314442), (38, 552657221)]