19172871

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 28619136

約数和(自身を除く): 9446265

約数列:

[1, 3, 9, 41, 123, 223, 233, 369, 669, 699, 2007, 2097, 9143, 9553, 27429, 28659, 51959, 82287, 85977, 155877, 467631, 2130319, 6390957, 19172871]

約数ペア:

[(1, 19172871), (3, 6390957), (9, 2130319), (41, 467631), (123, 155877), (223, 85977), (233, 82287), (369, 51959), (669, 28659), (699, 27429), (2007, 9553), (2097, 9143)]