19995507

素因数分解:

$3^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{733}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 33129824

約数和(自身を除く): 13134317

約数列:

[1, 3, 7, 9, 21, 63, 433, 733, 1299, 2199, 3031, 3897, 5131, 6597, 9093, 15393, 27279, 46179, 317389, 952167, 2221723, 2856501, 6665169, 19995507]

約数ペア:

[(1, 19995507), (3, 6665169), (7, 2856501), (9, 2221723), (21, 952167), (63, 317389), (433, 46179), (733, 27279), (1299, 15393), (2199, 9093), (3031, 6597), (3897, 5131)]