12220789

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 14540800

約数和(自身を除く): 2320011

約数列:

[1, 7, 31, 199, 217, 283, 1393, 1981, 6169, 8773, 43183, 56317, 61411, 394219, 1745827, 12220789]

約数ペア:

[(1, 12220789), (7, 1745827), (31, 394219), (199, 61411), (217, 56317), (283, 43183), (1393, 8773), (1981, 6169)]