20308556

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1663}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 36900864

約数和(自身を除く): 16592308

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1663, 3053, 3326, 6106, 6652, 12212, 71509, 118073, 143018, 236146, 286036, 472292, 5077139, 10154278, 20308556]

約数ペア:

[(1, 20308556), (2, 10154278), (4, 5077139), (43, 472292), (71, 286036), (86, 236146), (142, 143018), (172, 118073), (284, 71509), (1663, 12212), (3053, 6652), (3326, 6106)]