198722881

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{30493}}^1$

素因数の和:30533

約数の個数: 16

約数和(自身を含む): 243952000

約数和(自身を除く): 45229119

約数列:

[1, 7, 19, 49, 133, 343, 931, 6517, 30493, 213451, 579367, 1494157, 4055569, 10459099, 28388983, 198722881]

約数ペア:

[(1, 198722881), (7, 28388983), (19, 10459099), (49, 4055569), (133, 1494157), (343, 579367), (931, 213451), (6517, 30493)]