18830961

素因数分解:

$3^4\times {\mathrm{383}}^1\times {\mathrm{607}}^1$

素因数の和:1002

約数の個数: 20

約数和(自身を含む): 28250112

約数和(自身を除く): 9419151

約数列:

[1, 3, 9, 27, 81, 383, 607, 1149, 1821, 3447, 5463, 10341, 16389, 31023, 49167, 232481, 697443, 2092329, 6276987, 18830961]

約数ペア:

[(1, 18830961), (3, 6276987), (9, 2092329), (27, 697443), (81, 232481), (383, 49167), (607, 31023), (1149, 16389), (1821, 10341), (3447, 5463)]