20975295

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127123}}^1$

素因数の和:127142

約数の個数: 16

約数和(自身を含む): 36611712

約数和(自身を除く): 15636417

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 127123, 381369, 635615, 1398353, 1906845, 4195059, 6991765, 20975295]

約数ペア:

[(1, 20975295), (3, 6991765), (5, 4195059), (11, 1906845), (15, 1398353), (33, 635615), (55, 381369), (165, 127123)]