19661817

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13187}}^1$

素因数の和:13268

約数の個数: 16

約数和(自身を含む): 30385152

約数和(自身を除く): 10723335

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13187, 39561, 92309, 276927, 936277, 2808831, 6553939, 19661817]

約数ペア:

[(1, 19661817), (3, 6553939), (7, 2808831), (21, 936277), (71, 276927), (213, 92309), (497, 39561), (1491, 13187)]