18867831

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{727}}^1$

素因数の和:982

約数の個数: 16

約数和(自身を含む): 25928448

約数和(自身を除く): 7060617

約数列:

[1, 3, 41, 123, 211, 633, 727, 2181, 8651, 25953, 29807, 89421, 153397, 460191, 6289277, 18867831]

約数ペア:

[(1, 18867831), (3, 6289277), (41, 460191), (123, 153397), (211, 89421), (633, 29807), (727, 25953), (2181, 8651)]