18893847

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47353}}^1$

素因数の和:47382

約数の個数: 16

約数和(自身を含む): 30306560

約数和(自身を除く): 11412713

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 47353, 142059, 331471, 899707, 994413, 2699121, 6297949, 18893847]

約数ペア:

[(1, 18893847), (3, 6297949), (7, 2699121), (19, 994413), (21, 899707), (57, 331471), (133, 142059), (399, 47353)]