18381519

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{52369}}^1$

素因数の和:52391

約数の個数: 16

約数和(自身を含む): 29327200

約数和(自身を除く): 10945681

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 52369, 157107, 471321, 680797, 1413963, 2042391, 6127173, 18381519]

約数ペア:

[(1, 18381519), (3, 6127173), (9, 2042391), (13, 1413963), (27, 680797), (39, 471321), (117, 157107), (351, 52369)]