21188554

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{1109}}^1$

素因数の和:1385

約数の個数: 16

約数和(自身を含む): 32727240

約数和(自身を除く): 11538686

約数列:

[1, 2, 41, 82, 233, 466, 1109, 2218, 9553, 19106, 45469, 90938, 258397, 516794, 10594277, 21188554]

約数ペア:

[(1, 21188554), (2, 10594277), (41, 516794), (82, 258397), (233, 90938), (466, 45469), (1109, 19106), (2218, 9553)]