28667385

素因数分解:

$3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 51384960

約数和(自身を除く): 22717575

約数列:

[1, 3, 5, 9, 15, 27, 45, 131, 135, 393, 655, 1179, 1621, 1965, 3537, 4863, 5895, 8105, 14589, 17685, 24315, 43767, 72945, 212351, 218835, 637053, 1061755, 1911159, 3185265, 5733477, 9555795, 28667385]

約数ペア:

[(1, 28667385), (3, 9555795), (5, 5733477), (9, 3185265), (15, 1911159), (27, 1061755), (45, 637053), (131, 218835), (135, 212351), (393, 72945), (655, 43767), (1179, 24315), (1621, 17685), (1965, 14589), (3537, 8105), (4863, 5895)]