28154805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{15773}}^1$

素因数の和:15805

約数の個数: 32

約数和(自身を含む): 54514944

約数和(自身を除く): 26360139

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 15773, 47319, 78865, 110411, 236595, 268141, 331233, 552055, 804423, 1340705, 1656165, 1876987, 4022115, 5630961, 9384935, 28154805]

約数ペア:

[(1, 28154805), (3, 9384935), (5, 5630961), (7, 4022115), (15, 1876987), (17, 1656165), (21, 1340705), (35, 804423), (51, 552055), (85, 331233), (105, 268141), (119, 236595), (255, 110411), (357, 78865), (595, 47319), (1785, 15773)]