19990054

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{11243}}^1$

素因数の和:11379

約数の個数: 16

約数和(自身を含む): 34541568

約数和(自身を除く): 14551514

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 11243, 22486, 78701, 157402, 1427861, 2855722, 9995027, 19990054]

約数ペア:

[(1, 19990054), (2, 9995027), (7, 2855722), (14, 1427861), (127, 157402), (254, 78701), (889, 22486), (1778, 11243)]