81215806

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{252223}}^1$

素因数の和:252255

約数の個数: 16

約数和(自身を含む): 145281024

約数和(自身を除く): 64065218

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 252223, 504446, 1765561, 3531122, 5801129, 11602258, 40607903, 81215806]

約数ペア:

[(1, 81215806), (2, 40607903), (7, 11602258), (14, 5801129), (23, 3531122), (46, 1765561), (161, 504446), (322, 252223)]