18021513

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{787}}^1$

素因数の和:1256

約数の個数: 16

約数和(自身を含む): 25531200

約数和(自身を除く): 7509687

約数列:

[1, 3, 17, 51, 449, 787, 1347, 2361, 7633, 13379, 22899, 40137, 353363, 1060089, 6007171, 18021513]

約数ペア:

[(1, 18021513), (3, 6007171), (17, 1060089), (51, 353363), (449, 40137), (787, 22899), (1347, 13379), (2361, 7633)]