18027191

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 24127488

約数和(自身を除く): 6100297

約数列:

[1, 7, 13, 17, 43, 91, 119, 221, 271, 301, 559, 731, 1547, 1897, 3523, 3913, 4607, 5117, 9503, 11653, 24661, 32249, 59891, 66521, 81571, 151489, 198101, 419237, 1060423, 1386707, 2575313, 18027191]

約数ペア:

[(1, 18027191), (7, 2575313), (13, 1386707), (17, 1060423), (43, 419237), (91, 198101), (119, 151489), (221, 81571), (271, 66521), (301, 59891), (559, 32249), (731, 24661), (1547, 11653), (1897, 9503), (3523, 5117), (3913, 4607)]