28252959

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2707}}^1$

素因数の和:2795

約数の個数: 24

約数和(自身を含む): 44454528

約数和(自身を除く): 16201569

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 2707, 3479, 8121, 10437, 18949, 56847, 132643, 192197, 397929, 576591, 1345379, 4036137, 9417653, 28252959]

約数ペア:

[(1, 28252959), (3, 9417653), (7, 4036137), (21, 1345379), (49, 576591), (71, 397929), (147, 192197), (213, 132643), (497, 56847), (1491, 18949), (2707, 10437), (3479, 8121)]