201990428521

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{8529641}}^1$

素因数の和:8529864

約数の個数: 16

約数和(自身を含む): 245653689600

約数和(自身を除く): 43663261079

約数列:

[1, 7, 17, 119, 199, 1393, 3383, 23681, 8529641, 59707487, 145003897, 1015027279, 1697398559, 11881789913, 28855775503, 201990428521]

約数ペア:

[(1, 201990428521), (7, 28855775503), (17, 11881789913), (119, 1697398559), (199, 1015027279), (1393, 145003897), (3383, 59707487), (23681, 8529641)]