18639893

素因数分解:

${\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:332

約数の個数: 16

約数和(自身を含む): 20246400

約数和(自身を除く): 1606507

約数列:

[1, 19, 73, 89, 151, 1387, 1691, 2869, 6497, 11023, 13439, 123443, 209437, 255341, 981047, 18639893]

約数ペア:

[(1, 18639893), (19, 981047), (73, 255341), (89, 209437), (151, 123443), (1387, 13439), (1691, 11023), (2869, 6497)]