209531043

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{38609}}^1$

素因数の和:38688

約数の個数: 20

約数和(自身を含む): 317683080

約数和(自身を除く): 108152037

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 38609, 115827, 347481, 1042443, 2586803, 3127329, 7760409, 23281227, 69843681, 209531043]

約数ペア:

[(1, 209531043), (3, 69843681), (9, 23281227), (27, 7760409), (67, 3127329), (81, 2586803), (201, 1042443), (603, 347481), (1809, 115827), (5427, 38609)]