20807896

素因数分解:

$2^3\times {\mathrm{1097}}^1\times {\mathrm{2371}}^1$

素因数の和:3474

約数の個数: 16

約数和(自身を含む): 39066840

約数和(自身を除く): 18258944

約数列:

[1, 2, 4, 8, 1097, 2194, 2371, 4388, 4742, 8776, 9484, 18968, 2600987, 5201974, 10403948, 20807896]

約数ペア:

[(1, 20807896), (2, 10403948), (4, 5201974), (8, 2600987), (1097, 18968), (2194, 9484), (2371, 8776), (4388, 4742)]