28213255

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{26003}}^1$

素因数の和:26046

約数の個数: 16

約数和(自身を含む): 39942144

約数和(自身を除く): 11728889

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 26003, 130015, 182021, 806093, 910105, 4030465, 5642651, 28213255]

約数ペア:

[(1, 28213255), (5, 5642651), (7, 4030465), (31, 910105), (35, 806093), (155, 182021), (217, 130015), (1085, 26003)]