21304242

素因数分解:

$2^1\times 3^3\times {\mathrm{394523}}^1$

素因数の和:394534

約数の個数: 16

約数和(自身を含む): 47342880

約数和(自身を除く): 26038638

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394523, 789046, 1183569, 2367138, 3550707, 7101414, 10652121, 21304242]

約数ペア:

[(1, 21304242), (2, 10652121), (3, 7101414), (6, 3550707), (9, 2367138), (18, 1183569), (27, 789046), (54, 394523)]