1906804557

素因数分解:

$3^4\times 7^1\times {\mathrm{3362971}}^1$

素因数の和:3362990

約数の個数: 20

約数和(自身を含む): 3255356896

約数和(自身を除く): 1348552339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3362971, 10088913, 23540797, 30266739, 70622391, 90800217, 211867173, 272400651, 635601519, 1906804557]

約数ペア:

[(1, 1906804557), (3, 635601519), (7, 272400651), (9, 211867173), (21, 90800217), (27, 70622391), (63, 30266739), (81, 23540797), (189, 10088913), (567, 3362971)]