18688671

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{4001}}^1$

素因数の和:4183

約数の個数: 16

約数和(自身を含む): 27853920

約数和(自身を除く): 9165249

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4001, 4671, 12003, 36009, 108027, 692173, 2076519, 6229557, 18688671]

約数ペア:

[(1, 18688671), (3, 6229557), (9, 2076519), (27, 692173), (173, 108027), (519, 36009), (1557, 12003), (4001, 4671)]