137181821

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{17389}}^1$

素因数の和:17433

約数の個数: 16

約数和(自身を含む): 166944000

約数和(自身を除く): 29762179

約数列:

[1, 7, 23, 49, 161, 343, 1127, 7889, 17389, 121723, 399947, 852061, 2799629, 5964427, 19597403, 137181821]

約数ペア:

[(1, 137181821), (7, 19597403), (23, 5964427), (49, 2799629), (161, 852061), (343, 399947), (1127, 121723), (7889, 17389)]