2786787

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 4347200

約数和(自身を除く): 1560413

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 379, 387, 817, 1137, 2451, 3411, 7201, 7353, 16297, 21603, 48891, 64809, 146673, 309643, 928929, 2786787]

約数ペア:

[(1, 2786787), (3, 928929), (9, 309643), (19, 146673), (43, 64809), (57, 48891), (129, 21603), (171, 16297), (379, 7353), (387, 7201), (817, 3411), (1137, 2451)]