20691388

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1777}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 37636704

約数和(自身を除く): 16945316

約数列:

[1, 2, 4, 41, 71, 82, 142, 164, 284, 1777, 2911, 3554, 5822, 7108, 11644, 72857, 126167, 145714, 252334, 291428, 504668, 5172847, 10345694, 20691388]

約数ペア:

[(1, 20691388), (2, 10345694), (4, 5172847), (41, 504668), (71, 291428), (82, 252334), (142, 145714), (164, 126167), (284, 72857), (1777, 11644), (2911, 7108), (3554, 5822)]