21808827

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1433}}^1$

素因数の和:1547

約数の個数: 24

約数和(自身を含む): 33555600

約数和(自身を除く): 11746773

約数列:

[1, 3, 9, 19, 57, 89, 171, 267, 801, 1433, 1691, 4299, 5073, 12897, 15219, 27227, 81681, 127537, 245043, 382611, 1147833, 2423203, 7269609, 21808827]

約数ペア:

[(1, 21808827), (3, 7269609), (9, 2423203), (19, 1147833), (57, 382611), (89, 245043), (171, 127537), (267, 81681), (801, 27227), (1433, 15219), (1691, 12897), (4299, 5073)]