19897612

素因数分解:

$2^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{3571}}^1$

素因数の和:3781

約数の個数: 24

約数和(自身を含む): 40006400

約数和(自身を除く): 20108788

約数列:

[1, 2, 4, 7, 14, 28, 199, 398, 796, 1393, 2786, 3571, 5572, 7142, 14284, 24997, 49994, 99988, 710629, 1421258, 2842516, 4974403, 9948806, 19897612]

約数ペア:

[(1, 19897612), (2, 9948806), (4, 4974403), (7, 2842516), (14, 1421258), (28, 710629), (199, 99988), (398, 49994), (796, 24997), (1393, 14284), (2786, 7142), (3571, 5572)]