18989234

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12157}}^1$

素因数の和:12241

約数の個数: 16

約数和(自身を含む): 31513536

約数和(自身を除く): 12524302

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12157, 24314, 133727, 267454, 863147, 1726294, 9494617, 18989234]

約数ペア:

[(1, 18989234), (2, 9494617), (11, 1726294), (22, 863147), (71, 267454), (142, 133727), (781, 24314), (1562, 12157)]