19997242442

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{140825651}}^1$

素因数の和:140825724

約数の個数: 8

約数和(自身を含む): 30418340832

約数和(自身を除く): 10421098390

約数列:

[1, 2, 71, 142, 140825651, 281651302, 9998621221, 19997242442]

約数ペア:

[(1, 19997242442), (2, 9998621221), (71, 281651302), (142, 140825651)]