19980039

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4937}}^1$

素因数の和:5030

約数の個数: 16

約数和(自身を含む): 28442880

約数和(自身を除く): 8462841

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 4937, 14811, 93803, 281409, 350527, 1051581, 6660013, 19980039]

約数ペア:

[(1, 19980039), (3, 6660013), (19, 1051581), (57, 350527), (71, 281409), (213, 93803), (1349, 14811), (4047, 4937)]