18670221

素因数分解:

$3^2\times {\mathrm{419}}^1\times {\mathrm{4951}}^1$

素因数の和:5376

約数の個数: 12

約数和(自身を含む): 27037920

約数和(自身を除く): 8367699

約数列:

[1, 3, 9, 419, 1257, 3771, 4951, 14853, 44559, 2074469, 6223407, 18670221]

約数ペア:

[(1, 18670221), (3, 6223407), (9, 2074469), (419, 44559), (1257, 14853), (3771, 4951)]