18756717

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13331}}^1$

素因数の和:13408

約数の個数: 16

約数和(自身を含む): 29010432

約数和(自身を除く): 10253715

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 13331, 39993, 93317, 279951, 893177, 2679531, 6252239, 18756717]

約数ペア:

[(1, 18756717), (3, 6252239), (7, 2679531), (21, 893177), (67, 279951), (201, 93317), (469, 39993), (1407, 13331)]