20199270538

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27976829}}^1$

素因数の和:27976869

約数の個数: 12

約数和(自身を含む): 31977516690

約数和(自身を除く): 11778246152

約数列:

[1, 2, 19, 38, 361, 722, 27976829, 55953658, 531559751, 1063119502, 10099635269, 20199270538]

約数ペア:

[(1, 20199270538), (2, 10099635269), (19, 1063119502), (38, 531559751), (361, 55953658), (722, 27976829)]