19988349

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{853}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 27300672

約数和(自身を除く): 7312323

約数列:

[1, 3, 73, 107, 219, 321, 853, 2559, 7811, 23433, 62269, 91271, 186807, 273813, 6662783, 19988349]

約数ペア:

[(1, 19988349), (3, 6662783), (73, 273813), (107, 186807), (219, 91271), (321, 62269), (853, 23433), (2559, 7811)]