20938475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2593}}^1$

素因数の和:2639

約数の個数: 24

約数和(自身を含む): 28949040

約数和(自身を除く): 8010565

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2593, 8075, 12965, 44081, 49267, 64825, 220405, 246335, 837539, 1102025, 1231675, 4187695, 20938475]

約数ペア:

[(1, 20938475), (5, 4187695), (17, 1231675), (19, 1102025), (25, 837539), (85, 246335), (95, 220405), (323, 64825), (425, 49267), (475, 44081), (1615, 12965), (2593, 8075)]