18361903

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1151}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 21897216

約数和(自身を除く): 3535313

約数列:

[1, 7, 43, 53, 301, 371, 1151, 2279, 8057, 15953, 49493, 61003, 346451, 427021, 2623129, 18361903]

約数ペア:

[(1, 18361903), (7, 2623129), (43, 427021), (53, 346451), (301, 61003), (371, 49493), (1151, 15953), (2279, 8057)]