278313639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{20269}}^1$

素因数の和:20494

約数の個数: 16

約数和(自身を含む): 389184000

約数和(自身を除く): 110870361

約数列:

[1, 3, 23, 69, 199, 597, 4577, 13731, 20269, 60807, 466187, 1398561, 4033531, 12100593, 92771213, 278313639]

約数ペア:

[(1, 278313639), (3, 92771213), (23, 12100593), (69, 4033531), (199, 1398561), (597, 466187), (4577, 60807), (13731, 20269)]