399418

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:501

約数の個数: 16

約数和(自身を含む): 659520

約数和(自身を除く): 260102

約数列:

[1, 2, 19, 23, 38, 46, 437, 457, 874, 914, 8683, 10511, 17366, 21022, 199709, 399418]

約数ペア:

[(1, 399418), (2, 199709), (19, 21022), (23, 17366), (38, 10511), (46, 8683), (437, 914), (457, 874)]