181261339

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:883

約数の個数: 24

約数和(自身を含む): 219564000

約数和(自身を除く): 38302661

約数列:

[1, 7, 29, 49, 199, 203, 641, 1393, 1421, 4487, 5771, 9751, 18589, 31409, 40397, 127559, 130123, 282779, 892913, 910861, 3699211, 6250391, 25894477, 181261339]

約数ペア:

[(1, 181261339), (7, 25894477), (29, 6250391), (49, 3699211), (199, 910861), (203, 892913), (641, 282779), (1393, 130123), (1421, 127559), (4487, 40397), (5771, 31409), (9751, 18589)]