28190763

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 41704416

約数和(自身を除く): 13513653

約数列:

[1, 3, 9, 71, 157, 213, 281, 471, 639, 843, 1413, 2529, 11147, 19951, 33441, 44117, 59853, 100323, 132351, 179559, 397053, 3132307, 9396921, 28190763]

約数ペア:

[(1, 28190763), (3, 9396921), (9, 3132307), (71, 397053), (157, 179559), (213, 132351), (281, 100323), (471, 59853), (639, 44117), (843, 33441), (1413, 19951), (2529, 11147)]