21356786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{14489}}^1$

素因数の和:14569

約数の個数: 16

約数和(自身を含む): 35471520

約数和(自身を除く): 14114734

約数列:

[1, 2, 11, 22, 67, 134, 737, 1474, 14489, 28978, 159379, 318758, 970763, 1941526, 10678393, 21356786]

約数ペア:

[(1, 21356786), (2, 10678393), (11, 1941526), (22, 970763), (67, 318758), (134, 159379), (737, 28978), (1474, 14489)]