21959252

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{563}}^1$

素因数の和:780

約数の個数: 36

約数和(自身を含む): 45007200

約数和(自身を除く): 23047948

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 563, 796, 1126, 1393, 2252, 2786, 3941, 5572, 7882, 9751, 15764, 19502, 27587, 39004, 55174, 110348, 112037, 224074, 448148, 784259, 1568518, 3137036, 5489813, 10979626, 21959252]

約数ペア:

[(1, 21959252), (2, 10979626), (4, 5489813), (7, 3137036), (14, 1568518), (28, 784259), (49, 448148), (98, 224074), (196, 112037), (199, 110348), (398, 55174), (563, 39004), (796, 27587), (1126, 19502), (1393, 15764), (2252, 9751), (2786, 7882), (3941, 5572)]