18791109

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{2053}}^1$

素因数の和:2178

約数の個数: 20

約数和(自身を含む): 28332876

約数和(自身を除く): 9541767

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 2053, 3051, 6159, 9153, 18477, 55431, 166293, 231989, 695967, 2087901, 6263703, 18791109]

約数ペア:

[(1, 18791109), (3, 6263703), (9, 2087901), (27, 695967), (81, 231989), (113, 166293), (339, 55431), (1017, 18477), (2053, 9153), (3051, 6159)]