21059636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2341}}^1$

素因数の和:2531

約数の個数: 24

約数和(自身を含む): 39935784

約数和(自身を除く): 18876148

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2341, 4498, 4682, 8996, 9364, 30433, 60866, 121732, 404993, 809986, 1619972, 5264909, 10529818, 21059636]

約数ペア:

[(1, 21059636), (2, 10529818), (4, 5264909), (13, 1619972), (26, 809986), (52, 404993), (173, 121732), (346, 60866), (692, 30433), (2249, 9364), (2341, 8996), (4498, 4682)]