19814751

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2819}}^1$

素因数の和:2907

約数の個数: 24

約数和(自身を含む): 31674240

約数和(自身を除く): 11859489

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2819, 7029, 8457, 25371, 31009, 93027, 200149, 279081, 600447, 1801341, 2201639, 6604917, 19814751]

約数ペア:

[(1, 19814751), (3, 6604917), (9, 2201639), (11, 1801341), (33, 600447), (71, 279081), (99, 200149), (213, 93027), (639, 31009), (781, 25371), (2343, 8457), (2819, 7029)]