217032639

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 308066304

約数和(自身を除く): 91033665

約数列:

[1, 3, 37, 41, 103, 111, 123, 309, 463, 1389, 1517, 3811, 4223, 4551, 11433, 12669, 17131, 18983, 47689, 51393, 56949, 143067, 156251, 468753, 702371, 1764493, 1955249, 2107113, 5293479, 5865747, 72344213, 217032639]

約数ペア:

[(1, 217032639), (3, 72344213), (37, 5865747), (41, 5293479), (103, 2107113), (111, 1955249), (123, 1764493), (309, 702371), (463, 468753), (1389, 156251), (1517, 143067), (3811, 56949), (4223, 51393), (4551, 47689), (11433, 18983), (12669, 17131)]