21571095

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15803}}^1$

素因数の和:15831

約数の個数: 32

約数和(自身を含む): 42481152

約数和(自身を除く): 20910057

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15803, 47409, 79015, 110621, 205439, 237045, 331863, 553105, 616317, 1027195, 1438073, 1659315, 3081585, 4314219, 7190365, 21571095]

約数ペア:

[(1, 21571095), (3, 7190365), (5, 4314219), (7, 3081585), (13, 1659315), (15, 1438073), (21, 1027195), (35, 616317), (39, 553105), (65, 331863), (91, 237045), (105, 205439), (195, 110621), (273, 79015), (455, 47409), (1365, 15803)]