81819903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{743}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 123420672

約数和(自身を除く): 41600769

約数列:

[1, 3, 11, 33, 47, 71, 141, 213, 517, 743, 781, 1551, 2229, 2343, 3337, 8173, 10011, 24519, 34921, 36707, 52753, 104763, 110121, 158259, 384131, 580283, 1152393, 1740849, 2479391, 7438173, 27273301, 81819903]

約数ペア:

[(1, 81819903), (3, 27273301), (11, 7438173), (33, 2479391), (47, 1740849), (71, 1152393), (141, 580283), (213, 384131), (517, 158259), (743, 110121), (781, 104763), (1551, 52753), (2229, 36707), (2343, 34921), (3337, 24519), (8173, 10011)]