18937557

素因数分解:

$3^4\times {\mathrm{113}}^1\times {\mathrm{2069}}^1$

素因数の和:2194

約数の個数: 20

約数和(自身を含む): 28553580

約数和(自身を除く): 9616023

約数列:

[1, 3, 9, 27, 81, 113, 339, 1017, 2069, 3051, 6207, 9153, 18621, 55863, 167589, 233797, 701391, 2104173, 6312519, 18937557]

約数ペア:

[(1, 18937557), (3, 6312519), (9, 2104173), (27, 701391), (81, 233797), (113, 167589), (339, 55863), (1017, 18621), (2069, 9153), (3051, 6207)]