18519963

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{80173}}^1$

素因数の和:80194

約数の個数: 16

約数和(自身を含む): 30786816

約数和(自身を除く): 12266853

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 80173, 240519, 561211, 881903, 1683633, 2645709, 6173321, 18519963]

約数ペア:

[(1, 18519963), (3, 6173321), (7, 2645709), (11, 1683633), (21, 881903), (33, 561211), (77, 240519), (231, 80173)]