289147887

素因数分解:

$3^5\times 7^1\times {\mathrm{169987}}^1$

素因数の和:170009

約数の個数: 24

約数和(自身を含む): 495005056

約数和(自身を除く): 205857169

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 169987, 509961, 1189909, 1529883, 3569727, 4589649, 10709181, 13768947, 32127543, 41306841, 96382629, 289147887]

約数ペア:

[(1, 289147887), (3, 96382629), (7, 41306841), (9, 32127543), (21, 13768947), (27, 10709181), (63, 4589649), (81, 3569727), (189, 1529883), (243, 1189909), (567, 509961), (1701, 169987)]