1291419

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 1976832

約数和(自身を除く): 685413

約数列:

[1, 3, 9, 43, 47, 71, 129, 141, 213, 387, 423, 639, 2021, 3053, 3337, 6063, 9159, 10011, 18189, 27477, 30033, 143491, 430473, 1291419]

約数ペア:

[(1, 1291419), (3, 430473), (9, 143491), (43, 30033), (47, 27477), (71, 18189), (129, 10011), (141, 9159), (213, 6063), (387, 3337), (423, 3053), (639, 2021)]