21398121

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{46619}}^1$

素因数の和:46645

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 12168279

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 46619, 139857, 419571, 792523, 1258713, 2377569, 7132707, 21398121]

約数ペア:

[(1, 21398121), (3, 7132707), (9, 2377569), (17, 1258713), (27, 792523), (51, 419571), (153, 139857), (459, 46619)]