27990438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{666439}}^1$

素因数の和:666451

約数の個数: 16

約数和(自身を含む): 63978240

約数和(自身を除く): 35987802

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 666439, 1332878, 1999317, 3998634, 4665073, 9330146, 13995219, 27990438]

約数ペア:

[(1, 27990438), (2, 13995219), (3, 9330146), (6, 4665073), (7, 3998634), (14, 1999317), (21, 1332878), (42, 666439)]