20881893

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{3361}}^1$

素因数の和:3492

約数の個数: 16

約数和(自身を含む): 29585600

約数和(自身を除く): 8703707

約数列:

[1, 3, 19, 57, 109, 327, 2071, 3361, 6213, 10083, 63859, 191577, 366349, 1099047, 6960631, 20881893]

約数ペア:

[(1, 20881893), (3, 6960631), (19, 1099047), (57, 366349), (109, 191577), (327, 63859), (2071, 10083), (3361, 6213)]