278312121

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{1344503}}^1$

素因数の和:1344532

約数の個数: 12

約数和(自身を含む): 419485248

約数和(自身を除く): 141173127

約数列:

[1, 3, 9, 23, 69, 207, 1344503, 4033509, 12100527, 30923569, 92770707, 278312121]

約数ペア:

[(1, 278312121), (3, 92770707), (9, 30923569), (23, 12100527), (69, 4033509), (207, 1344503)]