18772881

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{631}}^1$

素因数の和:892

約数の個数: 16

約数和(自身を含む): 25724928

約数和(自身を除く): 6952047

約数列:

[1, 3, 47, 141, 211, 631, 633, 1893, 9917, 29657, 29751, 88971, 133141, 399423, 6257627, 18772881]

約数ペア:

[(1, 18772881), (3, 6257627), (47, 399423), (141, 133141), (211, 88971), (631, 29751), (633, 29657), (1893, 9917)]