20402756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{911}}^1$

素因数の和:1435

約数の個数: 24

約数和(自身を含む): 39070080

約数和(自身を除く): 18667324

約数列:

[1, 2, 4, 11, 22, 44, 509, 911, 1018, 1822, 2036, 3644, 5599, 10021, 11198, 20042, 22396, 40084, 463699, 927398, 1854796, 5100689, 10201378, 20402756]

約数ペア:

[(1, 20402756), (2, 10201378), (4, 5100689), (11, 1854796), (22, 927398), (44, 463699), (509, 40084), (911, 22396), (1018, 20042), (1822, 11198), (2036, 10021), (3644, 5599)]