556821

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{503}}^1$

素因数の和:553

約数の個数: 16

約数和(自身を含む): 846720

約数和(自身を除く): 289899

約数列:

[1, 3, 9, 27, 41, 123, 369, 503, 1107, 1509, 4527, 13581, 20623, 61869, 185607, 556821]

約数ペア:

[(1, 556821), (3, 185607), (9, 61869), (27, 20623), (41, 13581), (123, 4527), (369, 1509), (503, 1107)]