21000471496

素因数分解:

$2^3\times {\mathrm{365251}}^1\times {\mathrm{7187}}^1$

素因数の和:372444

約数の個数: 16

約数和(自身を含む): 39381470640

約数和(自身を除く): 18380999144

約数列:

[1, 2, 4, 8, 7187, 14374, 28748, 57496, 365251, 730502, 1461004, 2922008, 2625058937, 5250117874, 10500235748, 21000471496]

約数ペア:

[(1, 21000471496), (2, 10500235748), (4, 5250117874), (8, 2625058937), (7187, 2922008), (14374, 1461004), (28748, 730502), (57496, 365251)]