20993727

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^2$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 30696960

約数和(自身を除く): 9703233

約数列:

[1, 3, 19, 31, 57, 93, 109, 327, 589, 1767, 2071, 3379, 6213, 10137, 11881, 35643, 64201, 192603, 225739, 368311, 677217, 1104933, 6997909, 20993727]

約数ペア:

[(1, 20993727), (3, 6997909), (19, 1104933), (31, 677217), (57, 368311), (93, 225739), (109, 192603), (327, 64201), (589, 35643), (1767, 11881), (2071, 10137), (3379, 6213)]