20757037

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{107}}^2$

素因数の和:265

約数の個数: 18

約数和(自身を含む): 25032462

約数和(自身を除く): 4275425

約数列:

[1, 7, 37, 49, 107, 259, 749, 1813, 3959, 5243, 11449, 27713, 80143, 193991, 423613, 561001, 2965291, 20757037]

約数ペア:

[(1, 20757037), (7, 2965291), (37, 561001), (49, 423613), (107, 193991), (259, 80143), (749, 27713), (1813, 11449), (3959, 5243)]