198530689

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1\times {\mathrm{661}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 229931136

約数和(自身を除く): 31400447

約数列:

[1, 7, 107, 401, 661, 749, 2807, 4627, 42907, 70727, 265061, 300349, 495089, 1855427, 28361527, 198530689]

約数ペア:

[(1, 198530689), (7, 28361527), (107, 1855427), (401, 495089), (661, 300349), (749, 265061), (2807, 70727), (4627, 42907)]