19688199

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1637}}^1$

素因数の和:1870

約数の個数: 16

約数和(自身を含む): 27780480

約数和(自身を除く): 8092281

約数列:

[1, 3, 19, 57, 211, 633, 1637, 4009, 4911, 12027, 31103, 93309, 345407, 1036221, 6562733, 19688199]

約数ペア:

[(1, 19688199), (3, 6562733), (19, 1036221), (57, 345407), (211, 93309), (633, 31103), (1637, 12027), (4009, 4911)]