20955795

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1831}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 38691840

約数和(自身を除く): 17736045

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 109, 327, 545, 763, 1635, 1831, 2289, 3815, 5493, 9155, 11445, 12817, 27465, 38451, 64085, 192255, 199579, 598737, 997895, 1397053, 2993685, 4191159, 6985265, 20955795]

約数ペア:

[(1, 20955795), (3, 6985265), (5, 4191159), (7, 2993685), (15, 1397053), (21, 997895), (35, 598737), (105, 199579), (109, 192255), (327, 64085), (545, 38451), (763, 27465), (1635, 12817), (1831, 11445), (2289, 9155), (3815, 5493)]