21000575216

素因数分解:

$2^4\times {\mathrm{359}}^1\times {\mathrm{3656089}}^1$

素因数の和:3656456

約数の個数: 20

約数和(自身を含む): 40801964400

約数和(自身を除く): 19801389184

約数列:

[1, 2, 4, 8, 16, 359, 718, 1436, 2872, 5744, 3656089, 7312178, 14624356, 29248712, 58497424, 1312535951, 2625071902, 5250143804, 10500287608, 21000575216]

約数ペア:

[(1, 21000575216), (2, 10500287608), (4, 5250143804), (8, 2625071902), (16, 1312535951), (359, 58497424), (718, 29248712), (1436, 14624356), (2872, 7312178), (5744, 3656089)]