287489721

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{7457}}^1$

素因数の和:7712

約数の個数: 16

約数和(自身を含む): 390918528

約数和(自身を除く): 103428807

約数列:

[1, 3, 71, 181, 213, 543, 7457, 12851, 22371, 38553, 529447, 1349717, 1588341, 4049151, 95829907, 287489721]

約数ペア:

[(1, 287489721), (3, 95829907), (71, 4049151), (181, 1588341), (213, 1349717), (543, 529447), (7457, 38553), (12851, 22371)]