18195751

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1102

約数の個数: 16

約数和(自身を含む): 21649408

約数和(自身を除く): 3453657

約数列:

[1, 7, 43, 61, 301, 427, 991, 2623, 6937, 18361, 42613, 60451, 298291, 423157, 2599393, 18195751]

約数ペア:

[(1, 18195751), (7, 2599393), (43, 423157), (61, 298291), (301, 60451), (427, 42613), (991, 18361), (2623, 6937)]