19521567

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{18539}}^1$

素因数の和:18564

約数の個数: 20

約数和(自身を含む): 31406760

約数和(自身を除く): 11885193

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 18539, 55617, 166851, 241007, 500553, 723021, 1501659, 2169063, 6507189, 19521567]

約数ペア:

[(1, 19521567), (3, 6507189), (9, 2169063), (13, 1501659), (27, 723021), (39, 500553), (81, 241007), (117, 166851), (351, 55617), (1053, 18539)]