638852427

素因数分解:

$3^4\times {\mathrm{563}}^1\times {\mathrm{14009}}^1$

素因数の和:14584

約数の個数: 20

約数和(自身を含む): 956098440

約数和(自身を除く): 317246013

約数列:

[1, 3, 9, 27, 81, 563, 1689, 5067, 14009, 15201, 42027, 45603, 126081, 378243, 1134729, 7887067, 23661201, 70983603, 212950809, 638852427]

約数ペア:

[(1, 638852427), (3, 212950809), (9, 70983603), (27, 23661201), (81, 7887067), (563, 1134729), (1689, 378243), (5067, 126081), (14009, 45603), (15201, 42027)]