19878482

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{3881}}^1$

素因数の和:4093

約数の個数: 16

約数和(自身を含む): 32282712

約数和(自身を除く): 12404230

約数列:

[1, 2, 13, 26, 197, 394, 2561, 3881, 5122, 7762, 50453, 100906, 764557, 1529114, 9939241, 19878482]

約数ペア:

[(1, 19878482), (2, 9939241), (13, 1529114), (26, 764557), (197, 100906), (394, 50453), (2561, 7762), (3881, 5122)]