18988886

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31543}}^1$

素因数の和:31595

約数の個数: 16

約数和(自身を含む): 33310464

約数和(自身を除く): 14321578

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 31543, 63086, 220801, 441602, 1356349, 2712698, 9494443, 18988886]

約数ペア:

[(1, 18988886), (2, 9494443), (7, 2712698), (14, 1356349), (43, 441602), (86, 220801), (301, 63086), (602, 31543)]