19989198

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15641}}^1$

素因数の和:15720

約数の個数: 24

約数和(自身を含む): 43922736

約数和(自身を除く): 23933538

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15641, 31282, 46923, 93846, 140769, 281538, 1110511, 2221022, 3331533, 6663066, 9994599, 19989198]

約数ペア:

[(1, 19989198), (2, 9994599), (3, 6663066), (6, 3331533), (9, 2221022), (18, 1110511), (71, 281538), (142, 140769), (213, 93846), (426, 46923), (639, 31282), (1278, 15641)]