1681895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 2187648

約数和(自身を除く): 505753

約数列:

[1, 5, 17, 47, 85, 235, 421, 799, 2105, 3995, 7157, 19787, 35785, 98935, 336379, 1681895]

約数ペア:

[(1, 1681895), (5, 336379), (17, 98935), (47, 35785), (85, 19787), (235, 7157), (421, 3995), (799, 2105)]