199490221

素因数分解:

$7^2\times {\mathrm{137}}^1\times {\mathrm{29717}}^1$

素因数の和:29868

約数の個数: 12

約数和(自身を含む): 233761788

約数和(自身を除く): 34271567

約数列:

[1, 7, 49, 137, 959, 6713, 29717, 208019, 1456133, 4071229, 28498603, 199490221]

約数ペア:

[(1, 199490221), (7, 28498603), (49, 4071229), (137, 1456133), (959, 208019), (6713, 29717)]