199985918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{22669}}^1$

素因数の和:23083

約数の個数: 16

約数和(自身を含む): 328080240

約数和(自身を除く): 128094322

約数列:

[1, 2, 11, 22, 401, 802, 4411, 8822, 22669, 45338, 249359, 498718, 9090269, 18180538, 99992959, 199985918]

約数ペア:

[(1, 199985918), (2, 99992959), (11, 18180538), (22, 9090269), (401, 498718), (802, 249359), (4411, 45338), (8822, 22669)]