2778765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1531}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 4890144

約数和(自身を除く): 2111379

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1531, 1815, 4593, 7655, 16841, 22965, 50523, 84205, 185251, 252615, 555753, 926255, 2778765]

約数ペア:

[(1, 2778765), (3, 926255), (5, 555753), (11, 252615), (15, 185251), (33, 84205), (55, 50523), (121, 22965), (165, 16841), (363, 7655), (605, 4593), (1531, 1815)]