19172997

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{4523}}^1$

素因数の和:4689

約数の個数: 16

約数和(自身を含む): 28591680

約数和(自身を除く): 9418683

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 4523, 13569, 40707, 122121, 710111, 2130333, 6390999, 19172997]

約数ペア:

[(1, 19172997), (3, 6390999), (9, 2130333), (27, 710111), (157, 122121), (471, 40707), (1413, 13569), (4239, 4523)]