21398313

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4523}}^1$

素因数の和:4628

約数の個数: 16

約数和(自身を含む): 30401280

約数和(自身を除く): 9002967

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4523, 4731, 13569, 85937, 257811, 375409, 1126227, 7132771, 21398313]

約数ペア:

[(1, 21398313), (3, 7132771), (19, 1126227), (57, 375409), (83, 257811), (249, 85937), (1577, 13569), (4523, 4731)]