18810267

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3121}}^1$

素因数の和:3179

約数の個数: 24

約数和(自身を含む): 29896272

約数和(自身を除く): 11086005

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3121, 6027, 9363, 21847, 65541, 127961, 152929, 383883, 458787, 895727, 2687181, 6270089, 18810267]

約数ペア:

[(1, 18810267), (3, 6270089), (7, 2687181), (21, 895727), (41, 458787), (49, 383883), (123, 152929), (147, 127961), (287, 65541), (861, 21847), (2009, 9363), (3121, 6027)]