1217997

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{1367}}^1$

素因数の和:1390

約数の個数: 20

約数和(自身を含む): 1986336

約数和(自身を除く): 768339

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 1367, 4101, 12303, 15037, 36909, 45111, 110727, 135333, 405999, 1217997]

約数ペア:

[(1, 1217997), (3, 405999), (9, 135333), (11, 110727), (27, 45111), (33, 36909), (81, 15037), (99, 12303), (297, 4101), (891, 1367)]