19897324

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{70061}}^1$

素因数の和:70136

約数の個数: 12

約数和(自身を含む): 35311248

約数和(自身を除く): 15413924

約数列:

[1, 2, 4, 71, 142, 284, 70061, 140122, 280244, 4974331, 9948662, 19897324]

約数ペア:

[(1, 19897324), (2, 9948662), (4, 4974331), (71, 280244), (142, 140122), (284, 70061)]