1553985

素因数分解:

$3^5\times 5^1\times {\mathrm{1279}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 2795520

約数和(自身を除く): 1241535

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 1279, 3837, 6395, 11511, 19185, 34533, 57555, 103599, 172665, 310797, 517995, 1553985]

約数ペア:

[(1, 1553985), (3, 517995), (5, 310797), (9, 172665), (15, 103599), (27, 57555), (45, 34533), (81, 19185), (135, 11511), (243, 6395), (405, 3837), (1215, 1279)]