18887506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2207}}^1$

素因数の和:2609

約数の個数: 16

約数和(自身を含む): 31000320

約数和(自身を除く): 12112814

約数列:

[1, 2, 11, 22, 389, 778, 2207, 4279, 4414, 8558, 24277, 48554, 858523, 1717046, 9443753, 18887506]

約数ペア:

[(1, 18887506), (2, 9443753), (11, 1717046), (22, 858523), (389, 48554), (778, 24277), (2207, 8558), (4279, 4414)]