12537819

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2803}}^1$

素因数の和:2887

約数の個数: 24

約数和(自身を含む): 20996352

約数和(自身を除く): 8458533

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 2803, 4473, 8409, 19621, 25227, 58863, 176589, 199013, 597039, 1393091, 1791117, 4179273, 12537819]

約数ペア:

[(1, 12537819), (3, 4179273), (7, 1791117), (9, 1393091), (21, 597039), (63, 199013), (71, 176589), (213, 58863), (497, 25227), (639, 19621), (1491, 8409), (2803, 4473)]